diff --git a/assignments/src/MV3500Cohort2021JulySeptember/homework3/Fisher/ExampleSimulationProgramFisher.java b/assignments/src/MV3500Cohort2021JulySeptember/homework3/Fisher/ExampleSimulationProgramFisher.java
index b222016da067ac41753403c16edc3e5d5d623a08..e28aed24f90a1ba471c2d00cba46a98fbb0552ac 100644
--- a/assignments/src/MV3500Cohort2021JulySeptember/homework3/Fisher/ExampleSimulationProgramFisher.java
+++ b/assignments/src/MV3500Cohort2021JulySeptember/homework3/Fisher/ExampleSimulationProgramFisher.java
@@ -4,9 +4,13 @@ package MV3500Cohort2021JulySeptember.homework3.Fisher;
 /**
  * Copyright (c) 2008-2021, MOVES Institute, Naval Postgraduate School (NPS). All rights reserved.
  * This work is provided under a BSD open-source license, see project license.html and license.txt
- * @author brutzman@nps.edu
+ * @author adfis
+ * 
+ * This simulation has two entities moving towards each other and when they 
+ * collide a detonation happens.
  */
 
+import edu.nps.moves.dis7.enumerations.ForceID;
 import edu.nps.moves.dis7.enumerations.VariableRecordType;
 import edu.nps.moves.dis7.pdus.CommentPdu;
 import edu.nps.moves.dis7.pdus.EntityID;
@@ -62,9 +66,19 @@ public class ExampleSimulationProgramFisher
         EntityID       entityID_1    = new EntityID();
         entityID_1.setSiteID(1).setApplicationID(2).setEntityID(3); // made-up example ID; 
         // TODO someday, use enumerations; is there a unique site triplet for MOVES Institute?
+        
+        EntityID       entityID_2    = new EntityID();
+        entityID_2.setSiteID(4).setApplicationID(5).setEntityID(6);
 
         EntityStatePdu entityStatePdu_1 = pduFactory.makeEntityStatePdu();
         entityStatePdu_1.setEntityID(entityID_1);
+        entityStatePdu_1.setForceId(ForceID.FRIENDLY);
+        
+        EntityStatePdu entityStatePdu_2 = pduFactory.makeEntityStatePdu();
+        entityStatePdu_2.setEntityID(entityID_2);
+        entityStatePdu_2.getEntityLocation().setX(10);
+        entityStatePdu_2.setForceId(ForceID.OPPOSING);
+
 
         FirePdu        firePdu_1a       = pduFactory.makeFirePdu(); // for entity 1 first  weapon (if any)
         FirePdu        firePdu_1b       = pduFactory.makeFirePdu(); // for entity 1 second weapon (if any)
@@ -97,7 +111,7 @@ public class ExampleSimulationProgramFisher
             
             // Where is my entity?  Insert changes in position; this sample only changes X position.
             entityStatePdu_1.getEntityLocation().setX(entityStatePdu_1.getEntityLocation().getX() + 1.0); // 1m per timestep
-
+            entityStatePdu_2.getEntityLocation().setX(entityStatePdu_2.getEntityLocation().getX() - 1.0);
             // decide whether to fire, and then update the firePdu.  Hmmm, you might want a target to shoort at!
             
             // etc. etc. your code goes here for your simulation of interest
@@ -129,7 +143,7 @@ public class ExampleSimulationProgramFisher
             System.out.println ("sending PDUs for simulation step " + simulationLoopCount + ", monitor loopback to confirm sent");
             
             // Below is the PDU that comes out as "Comment" in the info
-            sendAllPdusForLoopTimestep(entityStatePdu_1, firePdu_1a, detonationPdu, timeStepComment, narrativeMessage1, narrativeMessage2, narrativeMessage3);
+            sendAllPdusForLoopTimestep(entityStatePdu_1, entityStatePdu_2, firePdu_1a, timeStepComment, narrativeMessage1, narrativeMessage2, narrativeMessage3);
             
             System.out.println ("... [PDUs successfully sent for this loop]");
             
@@ -137,6 +151,7 @@ public class ExampleSimulationProgramFisher
             // loop now finished, check whether to terminate if simulation complete, otherwise continue
             if (simulationComplete || (simulationLoopCount > 10000)) // for example; including fail-safe condition is good
             {
+                sendSinglePdu(detonationPdu);
                 System.out.println ("... [Termination condition met, simulationComplete=" + simulationComplete + "]"); // ", final loopCount=" + loopCount + 
                 break;
             }
@@ -309,23 +324,27 @@ public class ExampleSimulationProgramFisher
      * @param commentType    enumeration value describing purpose of the narrative comment
      * @param comments       String array of narrative comments
      */
-    public void sendAllPdusForLoopTimestep(EntityStatePdu entityStatePdu,
+    public void sendAllPdusForLoopTimestep(EntityStatePdu entityStatePdu1,
+                                EntityStatePdu entityStatePdu2,
                                    FirePdu firePdu,
-                                   DetonationPdu detonationPdu,
+                                   //DetonationPdu detonationPdu,
                         VariableRecordType commentType,
                               // vararg... variable-length set of String comments can optionally follow
                                  String... comments)
     {
-        if (entityStatePdu != null)
-            sendSinglePdu(entityStatePdu);
+        if (entityStatePdu1 != null)
+            sendSinglePdu(entityStatePdu1);
+        
+        if (entityStatePdu2 != null)
+            sendSinglePdu(entityStatePdu2);
                   
 
         if (firePdu != null)
             sendSinglePdu(firePdu); // bang
         
-        if (detonationPdu != null)
-            sendSinglePdu(detonationPdu);
-        
+        //if (detonationPdu != null)
+         //   sendSinglePdu(detonationPdu);
+        //
         if ((comments != null) && (comments.length > 0))
         {
             ArrayList<String> newCommentsList = new ArrayList<>();
@@ -385,7 +404,7 @@ public class ExampleSimulationProgramFisher
 
         thisProgram.runSimulation (); // ... your simulation execution code goes in there ...
         
-        pduRecorder.end();
+        //pduRecorder.end();
 
         thisProgram.tearDownNetworkInterface(); // make sure no processes are left lingering
         
diff --git a/assignments/src/MV3500Cohort2021JulySeptember/homework3/Frank/FrankAssignment3Simulation.java b/assignments/src/MV3500Cohort2021JulySeptember/homework3/Frank/FrankAssisgmentThreeSimulation.java
similarity index 86%
rename from assignments/src/MV3500Cohort2021JulySeptember/homework3/Frank/FrankAssignment3Simulation.java
rename to assignments/src/MV3500Cohort2021JulySeptember/homework3/Frank/FrankAssisgmentThreeSimulation.java
index c54220bbbb17db8cdd9c007a6ca41ee2156538e6..84a7488a8e4e7c5ac75026b10c3df29fd35c8dcd 100644
--- a/assignments/src/MV3500Cohort2021JulySeptember/homework3/Frank/FrankAssignment3Simulation.java
+++ b/assignments/src/MV3500Cohort2021JulySeptember/homework3/Frank/FrankAssisgmentThreeSimulation.java
@@ -6,37 +6,30 @@
  */
 package MV3500Cohort2021JulySeptember.homework3.Frank;
 
-import edu.nps.moves.dis7.enumerations.Country;
-import edu.nps.moves.dis7.enumerations.EntityKind;
-import edu.nps.moves.dis7.enumerations.MunitionDescriptorFuse;
-import edu.nps.moves.dis7.enumerations.PlatformDomain;
-import edu.nps.moves.dis7.enumerations.VariableRecordType;
-import edu.nps.moves.dis7.pdus.CommentPdu;
-import edu.nps.moves.dis7.pdus.CommentReliablePdu;
-import edu.nps.moves.dis7.pdus.Domain;
-import edu.nps.moves.dis7.pdus.EntityID;
-import edu.nps.moves.dis7.pdus.EntityStatePdu;
-import edu.nps.moves.dis7.pdus.EntityType;
-import edu.nps.moves.dis7.pdus.EulerAngles;
-import edu.nps.moves.dis7.pdus.FirePdu;
-import edu.nps.moves.dis7.pdus.MunitionDescriptor;
-import edu.nps.moves.dis7.pdus.Pdu;
-import edu.nps.moves.dis7.pdus.Vector3Double;
-import edu.nps.moves.dis7.utilities.CoordinateConversions;
+import edu.nps.moves.dis7.enumerations.*; // match any
+import edu.nps.moves.dis7.pdus.*;         // match any of the PDU classes, easier than listing individually
 import edu.nps.moves.dis7.utilities.DisThreadedNetworkInterface;
 import edu.nps.moves.dis7.utilities.PduFactory;
 import edu.nps.moves.dis7.utilities.stream.PduRecorder;
+import edu.nps.moves.disutil.CoordinateConversions;
 import java.util.ArrayList;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
 /**
- * The purpose of this program is to have M1Abrams Destroy A Russian T62 Tank. 
+ * The purpose of this program is to have M1Abrams Destroy A Russian T62 Tank.
  * simulation program that includes DIS-capable entities doing tasks and
  * reporting them to the network. Default settings include PDU recording turned
  * on by default.
  */
-public class FrankAssignment3Simulation {
+public class FrankAssisgmentThreeSimulation {
+
+    private boolean verboseComments;
+    static final String NETWORK_ADDRESS_DEFAULT = "239.1.2.3";
+    static final int NETWORK_PORT_DEFAULT = 3000;
+    static String networkAddress = NETWORK_ADDRESS_DEFAULT;
+    static int networkPort = NETWORK_PORT_DEFAULT;
+    String DEFAULT_OUTPUT_DIRECTORY = "./pduLog";
 
     private EntityID createM1Abrams() {
         EntityID M1AbramsID = new EntityID(); // 1.1.225.1.1.1 Platform,Ground,USA,ArmoredFightingVehicle M1 Abrams
@@ -111,23 +104,24 @@ public class FrankAssignment3Simulation {
         orient1.setTheta((float) 0.0);
         return orient1;
     }
-    
-   private MunitionDescriptor createM829IT(){
-           
-    EntityType M829Type = new EntityType(); //2.2.225.2.13.1
-            M829Type.setEntityKind(EntityKind.MUNITION);
-            M829Type.setDomain(Domain.inst(PlatformDomain.AIR));
-            M829Type.setCountry(Country.UNITED_STATES_OF_AMERICA_USA);
-            M829Type.setCategory(2);
-            M829Type.setSubCategory(13);
-            M829Type.setSpecific(1);
-            MunitionDescriptor M829IT = new MunitionDescriptor();
-            M829IT.setMunitionType(M829Type);
-            M829IT.setQuantity(3);
-            M829IT.setFuse(MunitionDescriptorFuse.CONTACT_GRAZE);
-            M829IT.setRate(200);
-   return M829IT;
-   }
+
+    private MunitionDescriptor createM829IT() {
+
+        EntityType M829Type = new EntityType(); //2.2.225.2.13.1
+        M829Type.setEntityKind(EntityKind.MUNITION);
+        M829Type.setDomain(Domain.inst(PlatformDomain.AIR));
+        M829Type.setCountry(Country.UNITED_STATES_OF_AMERICA_USA);
+        M829Type.setCategory(2);
+        M829Type.setSubCategory(13);
+        M829Type.setSpecific(1);
+        MunitionDescriptor M829IT = new MunitionDescriptor();
+        M829IT.setMunitionType(M829Type);
+        M829IT.setQuantity(3);
+        M829IT.setFuse(MunitionDescriptorFuse.CONTACT_GRAZE);
+        M829IT.setRate(200);
+        return M829IT;
+    }
+
     /**
      * This runSimulation() method is for you, a programmer-modifiable method
      * for defining and running a new simulation of interest. Welcome! Other
@@ -153,7 +147,7 @@ public class FrankAssignment3Simulation {
             boolean simulationComplete = false;     // sentinel variable as termination condition,, are we done yet?
             boolean fireBool = false;
             boolean destBool = false;
-            
+
             EntityID entityID_1 = new EntityID();
             entityID_1.setSiteID(1).setApplicationID(2).setEntityID(3); // made-up example ID; 
             // TODO someday, use enumerations; is there a unique site triplet for MOVES Institute?
@@ -169,7 +163,7 @@ public class FrankAssignment3Simulation {
             entityStatePdu_1.setEntityOrientation(createOrientation()); // Calling Create Orientation Method
 
             EntityStatePdu entityStatePdu2 = pduFactory.makeEntityStatePdu();
-//          //T-62 
+            //T-62 
             entityStatePdu2.setEntityID(createT62ID()); // Calling Create T62 ID method
             entityStatePdu2.setEntityType(createT62Type()); // Calling Create T62 Type method
             // enemy location and orientation 
@@ -197,12 +191,11 @@ public class FrankAssignment3Simulation {
             firePdu.setTargetEntityID(targetID);
 
             firePdu.setDescriptor(createM829IT()); // calling create M829IT Method
-            
+
             EntityID M829ID = new EntityID();
             M829ID.setEntityID(1);
             firePdu.setMunitionExpendibleID(M829ID);
 
-          
             CommentReliablePdu T62DestroyedComment = pduFactory.makeCommentReliablePdu("T62 DESTROYED BY M1 Abrams AFTER 2 rounds M829I-T ON TARGET");
             CommentReliablePdu T62SightedComment = pduFactory.makeCommentReliablePdu("M1 Abrams Acquires Target - T62 with in firing distance");
             //if(eloc1.getX())
@@ -210,7 +203,7 @@ public class FrankAssignment3Simulation {
 
             FirePdu firePdu_1a = pduFactory.makeFirePdu(); // for entity 1 first  weapon (if any)
 
-            while (simulationLoopCount < SIMULATION_MAX_LOOP_COUNT) // are we done yet?
+            while (simulationLoopCount < SIMULATION_MAX_LOOP_COUNT) 
             {
                 simulationLoopCount++; // good practice: increment loop counter as first action in that loop
                 // Where is my entity?
@@ -244,12 +237,11 @@ public class FrankAssignment3Simulation {
                     }
                 }
 
-        
                 if (simulationLoopCount > 4) // for example
                 {
                     simulationComplete = true;
                 }
-                
+
                 entityStatePdu_1.getEntityLocation().setX(entityStatePdu_1.getEntityLocation().getX() + 1.0); // 1m per timestep
 
                 narrativeMessage1 = "MV3500 FrankAssignment3Simulation";
@@ -264,9 +256,6 @@ public class FrankAssignment3Simulation {
                 // =============================================================================================
                 // * your own simulation code is finished here! *
                 // =============================================================================================
-
-                // staying synchronized with timestep: wait duration for elapsed time in this loop
-                // Thread.sleep needs a (long) parameter for milliseconds, which are clumsy to use sometimes
                 Thread.sleep((long) (SIMULATION_LOOP_DURATION_SECONDS * 1000)); // seconds * (1000 msec/sec) = milliseconds
                 System.out.println("... [Pausing for " + SIMULATION_LOOP_DURATION_SECONDS + " seconds]");
 
@@ -290,14 +279,11 @@ public class FrankAssignment3Simulation {
             // TODO simulation management PDUs
         } catch (InterruptedException iex) // handle any exception that your code might choose to provoke!
         {
-            Logger.getLogger(FrankAssignment3Simulation.class.getName()).log(Level.SEVERE, null, iex);
-
-        } catch (Exception ex) {
+            Logger.getLogger(FrankAssisgmentThreeSimulation.class.getName()).log(Level.SEVERE, null, iex);
         }
-
-        /* **************************** infrastructure code, modification is seldom needed ************************* */
     }
-    private boolean verboseComments = true;
+    /* **************************** infrastructure code, modification is seldom needed ************************* */
+
     String narrativeMessage1 = new String();
     String narrativeMessage2 = new String();
     String narrativeMessage3 = new String();
@@ -314,25 +300,21 @@ public class FrankAssignment3Simulation {
     /**
      * Output prefix to identify this class, helps with logging
      */
-    private final static String TRACE_PREFIX = "[" + FrankAssignment3Simulation.class.getName() + "] ";
+    private final static String TRACE_PREFIX = "[" + FrankAssisgmentThreeSimulation.class.getName() + "] ";
 
     // class variables
     PduFactory pduFactory = new PduFactory();
     DisThreadedNetworkInterface disNetworkInterface;
     DisThreadedNetworkInterface.PduListener pduListener;
     Pdu receivedPdu;
-
-    static final String NETWORK_ADDRESS_DEFAULT = "239.1.2.3";
-    static final int NETWORK_PORT_DEFAULT = 3000;
-    static String networkAddress = NETWORK_ADDRESS_DEFAULT;
-    static int networkPort = NETWORK_PORT_DEFAULT;
+    PduRecorder pduRecorder;
 
     /**
      * Constructor design goal: additional built-in initialization conveniences
      * can go here to keep student efforts focused on the runSimulation()
      * method.
      */
-    public FrankAssignment3Simulation() {
+    public FrankAssisgmentThreeSimulation() {
         // Constructor is under consideration.  Constructor is not currently needed.
     }
 
@@ -343,7 +325,7 @@ public class FrankAssignment3Simulation {
      * @param address network address to use
      * @param port corresponding network port to use
      */
-    public FrankAssignment3Simulation(String address, int port) {
+    public FrankAssisgmentThreeSimulation(String address, int port) {
         setNetworkAddress(address);
 
         setNetworkPort(port);
@@ -360,7 +342,7 @@ public class FrankAssignment3Simulation {
      * @param newNetworkAddress the networkAddress to set
      */
     public final void setNetworkAddress(String newNetworkAddress) {
-        FrankAssignment3Simulation.networkAddress = newNetworkAddress;
+        FrankAssisgmentThreeSimulation.networkAddress = newNetworkAddress;
     }
 
     /**
@@ -374,7 +356,7 @@ public class FrankAssignment3Simulation {
      * @param newNetworkPort the networkPort to set
      */
     public final void setNetworkPort(int newNetworkPort) {
-        FrankAssignment3Simulation.networkPort = newNetworkPort;
+        FrankAssisgmentThreeSimulation.networkPort = newNetworkPort;
     }
 
     /**
@@ -382,6 +364,7 @@ public class FrankAssignment3Simulation {
      */
     public void setUpNetworkInterface() {
         disNetworkInterface = new DisThreadedNetworkInterface(getNetworkAddress(), getNetworkPort());
+        disNetworkInterface.setDescriptor("FrankAssisgmentThreeSimulation pdu looping");
 
         System.out.println("Network confirmation:"
                 + " address=" + disNetworkInterface.getAddress()
@@ -397,12 +380,20 @@ public class FrankAssignment3Simulation {
             }
         };
         disNetworkInterface.addListener(pduListener);
+
+        String outputDirectory = DEFAULT_OUTPUT_DIRECTORY; //"./pduLog"
+        System.out.println("Beginning pdu save to directory " + outputDirectory);
+        pduRecorder = new PduRecorder(outputDirectory, getNetworkAddress(), getNetworkPort()); // assumes save
+        pduRecorder.setDescriptor("FrankAssisgmentThreeSimulation pduRecorder");
+        pduRecorder.start(); // begin running
     }
 
     /**
      * All done, release network resources
      */
     public void tearDownNetworkInterface() {
+        pduRecorder.stop();
+
         disNetworkInterface.removeListener(pduListener);
 
         disNetworkInterface.close();
@@ -415,7 +406,7 @@ public class FrankAssignment3Simulation {
      *
      * @param pdu the pdu to send
      */
-    public void sendSinglePdu(Pdu pdu) {
+    private void sendSinglePdu(Pdu pdu) {
         try {
             disNetworkInterface.send(pdu);
             Thread.sleep(100); // TODO consider refactoring the wait logic and moving externally
@@ -500,7 +491,7 @@ public class FrankAssignment3Simulation {
     public static void main(String[] args) {
         System.out.println(TRACE_PREFIX + "started...");
 
-        FrankAssignment3Simulation thisProgram = new FrankAssignment3Simulation(); // creates instance
+        FrankAssisgmentThreeSimulation thisProgram = new FrankAssisgmentThreeSimulation(); // creates instance
 
         // initial execution: can handle args array of initialization arguments here
         if (args.length == 2) {
@@ -519,15 +510,8 @@ public class FrankAssignment3Simulation {
 
         thisProgram.setUpNetworkInterface();
 
-        String DEFAULT_OUTPUT_DIRECTORY = "./pduLog";
-        String outputDirectory = DEFAULT_OUTPUT_DIRECTORY;
-        System.out.println("Beginning pdu save to directory " + outputDirectory);
-        PduRecorder pduRecorder = new PduRecorder(outputDirectory, networkAddress, networkPort); // assumes save
-
         thisProgram.runSimulation(); // ... your simulation execution code goes in there ...
 
-        pduRecorder.stop();
-
         thisProgram.tearDownNetworkInterface(); // make sure no processes are left lingering
 
         System.out.println(TRACE_PREFIX + "complete."); // report successful completion
diff --git a/assignments/src/MV3500Cohort2021JulySeptember/homework3/Keeven/Keeven3.java b/assignments/src/MV3500Cohort2021JulySeptember/homework3/Keeven/Keeven3.java
new file mode 100644
index 0000000000000000000000000000000000000000..d0ed7ad7dffb791f5c543711553f11526d345cef
--- /dev/null
+++ b/assignments/src/MV3500Cohort2021JulySeptember/homework3/Keeven/Keeven3.java
@@ -0,0 +1,533 @@
+/**
+ * Copyright (c) 2008-2021, MOVES Institute, Naval Postgraduate School (NPS). All rights reserved.
+ * This work is provided under a BSD open-source license, see project license.html and license.txt
+ *
+ * This Assignment was completed with the help of Justin Frank. We both worked on this program but submitted two different assignments
+ */
+package MV3500Cohort2021JulySeptember.homework3.Keeven;
+
+import edu.nps.moves.dis7.enumerations.*; // match any
+import edu.nps.moves.dis7.pdus.*;         // match any of the PDU classes, easier than listing individually
+import edu.nps.moves.dis7.utilities.DisThreadedNetworkInterface;
+import edu.nps.moves.dis7.utilities.PduFactory;
+import edu.nps.moves.dis7.utilities.stream.PduRecorder;
+import edu.nps.moves.disutil.CoordinateConversions;
+import java.util.ArrayList;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * The purpose of this program is to have an American Sniper Shoot a Russian sniper
+ * simulation program that includes DIS-capable entities doing tasks and
+ * reporting them to the network. Default settings include PDU recording turned
+ * on by default.
+ */
+public class Keeven3 {
+
+    private boolean verboseComments;
+    static final String NETWORK_ADDRESS_DEFAULT = "239.1.2.3";
+    static final int NETWORK_PORT_DEFAULT = 3000;
+    static String networkAddress = NETWORK_ADDRESS_DEFAULT;
+    static int networkPort = NETWORK_PORT_DEFAULT;
+    String DEFAULT_OUTPUT_DIRECTORY = "./pduLog";
+
+    private EntityID createFriendSniper() {
+        EntityID FNSniperID = new EntityID(); // 1.1.225.1.1.1 Platform,Ground,USA,Sniper
+        FNSniperID.setSiteID(17);
+        FNSniperID.setApplicationID(42);
+        FNSniperID.setEntityID(104);
+        return FNSniperID;
+    }
+
+    private EntityType createFriendSniperType() {
+        EntityType FNSniperType = new EntityType();
+        FNSniperType.setEntityKind(EntityKind.PLATFORM);
+        FNSniperType.setDomain(Domain.inst(PlatformDomain.LAND));
+        FNSniperType.setCountry(Country.UNITED_STATES_OF_AMERICA_USA);
+        FNSniperType.setCategory(2);
+        FNSniperType.setSubCategory(1);
+        FNSniperType.setSpecific(1);
+        return FNSniperType;
+    }
+
+    private Vector3Double createLocationVector() {
+        Vector3Double eloc2 = new Vector3Double();
+        double[] loc2 = CoordinateConversions.getXYZfromLatLonDegrees(36.599831, -121.878842, 0); //sloat delmonte intersection
+        eloc2.setX(loc2[0]);
+        eloc2.setY(loc2[1]);
+        eloc2.setZ(loc2[2]);
+        return eloc2;
+    }
+
+    private EulerAngles createOrientation() {
+        EulerAngles orient2 = new EulerAngles();
+        orient2.setPhi((float) 0.0);
+        orient2.setPsi((float) 0.0);
+        orient2.setTheta((float) 0.0);
+        return orient2;
+    }
+
+    private EntityID createENSniperID() {
+        EntityID ENSniperID = new EntityID();//1.1.45.1.7.1 Platform,Ground,Russian, Sniper
+        ENSniperID.setSiteID(1);
+        ENSniperID.setApplicationID(13);
+        ENSniperID.setEntityID(2);
+
+        return ENSniperID;
+    }
+
+    private EntityType createENSniperType() {
+
+        EntityType ENSniperType = new EntityType();
+        ENSniperType.setEntityKind(EntityKind.PLATFORM);
+        ENSniperType.setDomain(Domain.inst(PlatformDomain.LAND));
+        ENSniperType.setCountry(Country.RUSSIA);
+        ENSniperType.setCategory(2);
+        ENSniperType.setSubCategory(41);
+        ENSniperType.setSpecific(3);
+        return ENSniperType;
+    }
+
+    private Vector3Double createEnemyLocation() {
+        Vector3Double eloc1 = new Vector3Double();
+        double[] loc1 = CoordinateConversions.getXYZfromLatLonDegrees(36.594116, -121.877463, 0); //NPS Main Gate
+        eloc1.setX(loc1[0]);
+        eloc1.setY(loc1[1]);
+        eloc1.setZ(loc1[2]);
+        return eloc1;
+    }
+
+    private EulerAngles createEnemyOrientation() {
+        EulerAngles orient1 = new EulerAngles();
+        orient1.setPhi((float) 3.1415);
+        orient1.setPsi((float) 0.0);
+        orient1.setTheta((float) 0.0);
+        return orient1;
+    }
+
+    private MunitionDescriptor createRound() { 
+
+        EntityType RoundType = new EntityType(); //2.2.225.2.13.1
+        RoundType.setEntityKind(EntityKind.MUNITION);
+        RoundType.setDomain(Domain.inst(PlatformDomain.LAND));
+        RoundType.setCountry(Country.UNITED_STATES_OF_AMERICA_USA);
+        RoundType.setCategory(2);
+        RoundType.setSubCategory(13);
+        RoundType.setSpecific(1);
+        MunitionDescriptor SniperRound = new MunitionDescriptor();
+        SniperRound.setMunitionType(RoundType);
+        SniperRound.setQuantity(3);
+        SniperRound.setFuse(MunitionDescriptorFuse.CONTACT_GRAZE);
+        SniperRound.setRate(200);
+        return SniperRound;
+    }
+
+    /**
+     * This runSimulation() method is for you, a programmer-modifiable method
+     * for defining and running a new simulation of interest. Welcome! Other
+     * parts of this program handle bookkeeping and plumbing tasks so that you
+     * can focus on your model entities and activities. Expandable support
+     * includes DIS EntityStatePdu, FirePdu and CommentPdu all available for
+     * modification and sending in a simulation loop. Continuous improvement
+     * efforts seek to make this program as easy and straightforward as possible
+     * for DIS simulationists to use and adapt. All of the other methods are
+     * setup, teardown and configuration that you may find interesting, even
+     * helpful, but don't really have to worry about.
+     */
+    @SuppressWarnings("SleepWhileInLoop") // yes we do that
+    public void runSimulation() {
+        try {
+            /**
+             * seconds for real-time execution (not simulation time, which may
+             * or may not be the same)
+             */
+            final double SIMULATION_LOOP_DURATION_SECONDS = 2.0;
+            final int SIMULATION_MAX_LOOP_COUNT = 10; // be deliberate out out there!  also avoid infinite loops.
+            int simulationLoopCount = 0;        // variable, initialized at 0
+            boolean simulationComplete = false;     // sentinel variable as termination condition,, are we done yet?
+            boolean fireBool = false;
+            boolean destBool = false;
+
+            EntityID entityID_1 = new EntityID();
+            entityID_1.setSiteID(1).setApplicationID(2).setEntityID(3); // made-up example ID; 
+            // TODO someday, use enumerations; is there a unique site triplet for MOVES Institute?
+
+            EntityStatePdu entityStatePdu_1 = pduFactory.makeEntityStatePdu();
+            entityStatePdu_1.setEntityID(entityID_1);
+            // M1Abrams 
+            entityStatePdu_1.setEntityID(createFriendSniper()); // 
+            entityStatePdu_1.setEntityType(createFriendSniperType()); // 
+            // Location and Orientation 
+            Vector3Double eloc2 = createLocationVector(); // Calling createLocationVector Method
+            entityStatePdu_1.setEntityLocation(eloc2);
+            entityStatePdu_1.setEntityOrientation(createOrientation()); // Calling Create Orientation Method
+
+            EntityStatePdu entityStatePdu2 = pduFactory.makeEntityStatePdu();
+            //T-62 
+            entityStatePdu2.setEntityID(createENSniperID()); // 
+            entityStatePdu2.setEntityType(createENSniperType()); // 
+            // enemy location and orientation 
+            Vector3Double eloc1 = createEnemyLocation(); // calling create enemylocation method
+            entityStatePdu2.setEntityLocation(eloc1); // Setting em
+            entityStatePdu2.setEntityOrientation(createEnemyOrientation()); //calling create Enemy orientation method
+
+            int ENHitsReceived = 0;
+
+            System.out.println(eloc2.toString());
+            System.out.println(eloc1.toString());
+
+            //FirePdu firePduNull = new FirePdu();
+            FirePdu firePdu = pduFactory.makeFirePdu();
+            EntityID fireID = new EntityID();
+            fireID.setSiteID(1);
+            fireID.setApplicationID(13);
+            fireID.setEntityID(25);
+            EntityID targetID = new EntityID();
+            targetID.setSiteID(1);
+            targetID.setApplicationID(13);
+            targetID.setEntityID(2);
+
+            firePdu.setFiringEntityID(fireID);
+            firePdu.setTargetEntityID(targetID);
+
+            firePdu.setDescriptor(createRound()); // 
+
+            EntityID RoundID = new EntityID();
+            RoundID.setEntityID(1);
+            firePdu.setMunitionExpendibleID(RoundID);
+
+            CommentReliablePdu T62DestroyedComment = pduFactory.makeCommentReliablePdu("Russian Sniper Killed BY American sniper after 1 round");
+            CommentReliablePdu T62SightedComment = pduFactory.makeCommentReliablePdu("American Sniper Acquires Target - Russian Sniper in range");
+            //if(eloc1.getX())
+            EntityID MTVRID = new EntityID();
+
+            FirePdu firePdu_1a = pduFactory.makeFirePdu(); // for entity 1 first  weapon (if any)
+
+            while (simulationLoopCount < SIMULATION_MAX_LOOP_COUNT) 
+            {
+                simulationLoopCount++; // good practice: increment loop counter as first action in that loop
+                // Where is my entity?
+                entityStatePdu_1.getEntityLocation().setX(entityStatePdu_1.getEntityLocation().getX() - 20); // 1m per timestep
+                entityStatePdu_1.getEntityLocation().setY(entityStatePdu_1.getEntityLocation().getY() - 75);
+                // decide whether to fire, and then update the firePdu.  Hmmm, you might want a target to shoort at!
+                Double dx = eloc2.getX() - eloc1.getX();
+                Double dy = eloc2.getY() - eloc1.getY();
+                Double dz = eloc2.getZ() - eloc1.getZ();
+                Double range = Math.sqrt(dx * dx + dy * dy);
+                System.out.println("range" + range + "                dx:" + dx + "        dy:" + dy);
+
+                if (range < 100) { // Range 100
+                    if (!fireBool) {
+                        sendSinglePdu(T62SightedComment);
+                    }
+                    fireBool = true;
+                    System.out.println("Entity#" + firePdu.getFiringEntityID().getEntityID() + " is firing " + firePdu.getDescriptor().getMunitionType().getDomain() + "." + firePdu.getDescriptor().getMunitionType().getCountry() + "." + firePdu.getDescriptor().getMunitionType().getCategory() + "." + firePdu.getDescriptor().getMunitionType().getSubCategory() + "." + firePdu.getDescriptor().getMunitionType().getSpecific() + "." + " at Entity#" + firePdu.getTargetEntityID().getEntityID());
+
+                    if (firePdu.getTargetEntityID().getEntityID() == 2) {
+                        ENHitsReceived += 1;
+                        if (ENHitsReceived > 0) {
+                            // The American kills Russian Sniper
+
+                            System.out.println("American sniper kills Russian Sniper with " + ENHitsReceived + " rounds");
+                            narrativeMessage4 = "Destroyed Enemy";
+                            destBool = true;
+                            simulationComplete = true;
+
+                        }
+                    }
+                }
+
+                if (simulationLoopCount > 4) // for example
+                {
+                    simulationComplete = true;
+                }
+
+                entityStatePdu_1.getEntityLocation().setX(entityStatePdu_1.getEntityLocation().getX() + 1.0); // 1m per timestep
+
+                narrativeMessage1 = "MV3500 Keeven3";
+                narrativeMessage2 = "runSimulation() loop " + simulationLoopCount;
+                narrativeMessage3 = ""; // intentionally blank for testing
+
+                // your loop termination condition goes here
+                if (simulationLoopCount > 10) // for example
+                {
+                    simulationComplete = true;
+                }
+                // =============================================================================================
+                // * your own simulation code is finished here! *
+                // =============================================================================================
+                Thread.sleep((long) (SIMULATION_LOOP_DURATION_SECONDS * 1000)); // seconds * (1000 msec/sec) = milliseconds
+                System.out.println("... [Pausing for " + SIMULATION_LOOP_DURATION_SECONDS + " seconds]");
+
+                // OK now send the status PDUs for this loop, and then continue
+                System.out.println("sending PDUs for simulation step " + simulationLoopCount + ", monitor loopback to confirm sent");
+                sendAllPdusForLoopTimestep(entityStatePdu_1, firePdu_1a, timeStepComment, narrativeMessage1, narrativeMessage2, narrativeMessage3);
+                System.out.println("... [PDUs successfully sent for this loop]");
+
+                // ===============================
+                // loop now finished, check whether to terminate if simulation complete, otherwise continue
+                if (simulationComplete || (simulationLoopCount > 10000)) // for example; including fail-safe condition is good
+                {
+                    System.out.println("... [Termination condition met, simulationComplete=" + simulationComplete + "]"); // ", final loopCount=" + loopCount + 
+                    break;
+                }
+            }   // end of simulation loop
+
+            narrativeMessage2 = "runSimulation() completed successfully"; // all done
+            sendCommentPdu(narrativeComment, narrativeMessage1, narrativeMessage2, narrativeMessage3);
+            System.out.println("... [final CommentPdu successfully sent for simulation]");
+            // TODO simulation management PDUs
+        } catch (InterruptedException iex) // handle any exception that your code might choose to provoke!
+        {
+            Logger.getLogger(Keeven3.class.getName()).log(Level.SEVERE, null, iex);
+        }
+    }
+    /* **************************** infrastructure code, modification is seldom needed ************************* */
+
+    String narrativeMessage1 = new String();
+    String narrativeMessage2 = new String();
+    String narrativeMessage3 = new String();
+    String narrativeMessage4 = new String();
+
+    /* VariableRecordType enumerations have potential use with CommentPdu logs */
+ /* TODO contrast to EntityType */
+    VariableRecordType descriptionComment = VariableRecordType.DESCRIPTION;
+    VariableRecordType narrativeComment = VariableRecordType.COMPLETE_EVENT_REPORT;
+    VariableRecordType statusComment = VariableRecordType.APPLICATION_STATUS;
+    VariableRecordType timeStepComment = VariableRecordType.APPLICATION_TIMESTEP;
+    VariableRecordType otherComment = VariableRecordType.OTHER;
+
+    /**
+     * Output prefix to identify this class, helps with logging
+     */
+    private final static String TRACE_PREFIX = "[" + Keeven3.class.getName() + "] ";
+
+    // class variables
+    PduFactory pduFactory = new PduFactory();
+    DisThreadedNetworkInterface disNetworkInterface;
+    DisThreadedNetworkInterface.PduListener pduListener;
+    Pdu receivedPdu;
+    PduRecorder pduRecorder;
+
+    /**
+     * Constructor design goal: additional built-in initialization conveniences
+     * can go here to keep student efforts focused on the runSimulation()
+     * method.
+     */
+    public Keeven3() {
+        // Constructor is under consideration.  Constructor is not currently needed.
+    }
+
+    /**
+     * Utility Constructor that allows your example simulation program to
+     * override default network address and port
+     *
+     * @param address network address to use
+     * @param port corresponding network port to use
+     */
+    public Keeven3(String address, int port) {
+        setNetworkAddress(address);
+
+        setNetworkPort(port);
+    }
+
+    /**
+     * @return the networkAddress
+     */
+    public String getNetworkAddress() {
+        return networkAddress;
+    }
+
+    /**
+     * @param newNetworkAddress the networkAddress to set
+     */
+    public final void setNetworkAddress(String newNetworkAddress) {
+        Keeven3.networkAddress = newNetworkAddress;
+    }
+
+    /**
+     * @return the networkPort
+     */
+    public int getNetworkPort() {
+        return networkPort;
+    }
+
+    /**
+     * @param newNetworkPort the networkPort to set
+     */
+    public final void setNetworkPort(int newNetworkPort) {
+        Keeven3.networkPort = newNetworkPort;
+    }
+
+    /**
+     * Initialize network interface, choosing best available network interface
+     */
+    public void setUpNetworkInterface() {
+        disNetworkInterface = new DisThreadedNetworkInterface(getNetworkAddress(), getNetworkPort());
+        disNetworkInterface.setDescriptor("Keeven3 pdu looping");
+
+        System.out.println("Network confirmation:"
+                + " address=" + disNetworkInterface.getAddress()
+                + //  disNetworkInterface.getMulticastGroup() + 
+                " port=" + disNetworkInterface.getPort());   // + disNetworkInterface.getDisPort());
+        pduListener = new DisThreadedNetworkInterface.PduListener() {
+            /**
+             * Callback handler for listener
+             */
+            @Override
+            public void incomingPdu(Pdu newPdu) {
+                receivedPdu = newPdu;
+            }
+        };
+        disNetworkInterface.addListener(pduListener);
+
+        String outputDirectory = DEFAULT_OUTPUT_DIRECTORY; //"./pduLog"
+        System.out.println("Beginning pdu save to directory " + outputDirectory);
+        pduRecorder = new PduRecorder(outputDirectory, getNetworkAddress(), getNetworkPort()); // assumes save
+        pduRecorder.setDescriptor("Keeven3 pduRecorder");
+        pduRecorder.start(); // begin running
+    }
+
+    /**
+     * All done, release network resources
+     */
+    public void tearDownNetworkInterface() {
+        pduRecorder.stop();
+
+        disNetworkInterface.removeListener(pduListener);
+
+        disNetworkInterface.close();
+//      disNetworkInterface.kill(); // renamed as close(), deprecated
+//      disNetworkInterface = null; // making sure no possibility of zombie process remaining...
+    }
+
+    /**
+     * Send a single Protocol Data Unit (PDU) of any type
+     *
+     * @param pdu the pdu to send
+     */
+    private void sendSinglePdu(Pdu pdu) {
+        try {
+            disNetworkInterface.send(pdu);
+            Thread.sleep(100); // TODO consider refactoring the wait logic and moving externally
+        } catch (InterruptedException ex) {
+            System.err.println(this.getClass().getName() + " Error sending PDU: " + ex.getLocalizedMessage());
+            System.exit(1);
+        }
+    }
+
+    /**
+     * Send Comment PDU
+     *
+     * @see
+     * <a href="https://docs.oracle.com/javase/tutorial/java/javaOO/arguments.html">Passing
+     * Information to a Method or a Constructor</a> Arbitrary Number of
+     * Arguments
+     * @param commentType enumeration value describing purpose of the narrative
+     * comment
+     * @param comments String array of narrative comments
+     */
+    public void sendCommentPdu(VariableRecordType commentType,
+            // vararg... variable-length set of String comments can optionally follow
+            String... comments) {
+        sendAllPdusForLoopTimestep(null, null, commentType, comments);
+    }
+
+    /**
+     * Send EntityState, Fire, Comment PDUs that got updated for this loop,
+     * reflecting state of current simulation timestep.
+     *
+     * @see
+     * <a href="https://docs.oracle.com/javase/tutorial/java/javaOO/arguments.html">Passing
+     * Information to a Method or a Constructor</a> Arbitrary Number of
+     * Arguments
+     * @param entityStatePdu the ESPDU to send, if any
+     * @param firePdu the FirePDU to send, if any
+     * @param commentType enumeration value describing purpose of the narrative
+     * comment
+     * @param comments String array of narrative comments
+     */
+    public void sendAllPdusForLoopTimestep(EntityStatePdu entityStatePdu,
+            FirePdu firePdu,
+            VariableRecordType commentType,
+            // vararg... variable-length set of String comments can optionally follow
+            String... comments) {
+        if (entityStatePdu != null) {
+            sendSinglePdu(entityStatePdu);
+        }
+
+        if (firePdu != null) {
+            sendSinglePdu(firePdu); // bang
+        }
+        if ((comments != null) && (comments.length > 0)) {
+            ArrayList<String> newCommentsList = new ArrayList<>();
+            for (String comment : comments) {
+                if (!comment.isEmpty()) {
+                    newCommentsList.add(comment); // OK found something to send
+                }
+            }
+            if (!newCommentsList.isEmpty()) {
+                if (commentType == null) {
+                    commentType = otherComment; // fallback value otherComment
+                }                // now build the commentPdu from these string inputs, thus constructing a narrative entry
+                CommentPdu commentPdu = pduFactory.makeCommentPdu(commentType, newCommentsList.toArray(new String[0])); // comments);
+                sendSinglePdu(commentPdu);
+                if (isVerboseComments()) {
+                    System.out.println("*** [Narrative comment sent: " + commentType.name() + "] " + newCommentsList.toString());
+                }
+            }
+        }
+    }
+
+    /**
+     * Main method is first executed when a program instance is loaded.
+     *
+     * @see
+     * <a href="https://docs.oracle.com/javase/tutorial/getStarted/application/index.html">Java
+     * Tutorials: A Closer Look at the "Hello World!" Application</a>
+     * @param args command-line arguments are an array of optional String
+     * parameters that are passed from execution environment during invocation
+     */
+    public static void main(String[] args) {
+        System.out.println(TRACE_PREFIX + "started...");
+
+        Keeven3 thisProgram = new Keeven3(); // creates instance
+
+        // initial execution: can handle args array of initialization arguments here
+        if (args.length == 2) {
+            if ((args[0] != null) && !args[0].isEmpty()) {
+                thisProgram.setNetworkAddress(args[0]);
+            }
+
+            if ((args[1] != null) && !args[1].isEmpty()) {
+                thisProgram.setNetworkPort(Integer.parseInt(args[1]));
+            }
+        } else if (args.length != 0) {
+            System.err.println("Usage: " + thisProgram.getClass().getName() + " [address port]");
+            System.exit(-1);
+        }
+        // OK here we go...
+
+        thisProgram.setUpNetworkInterface();
+
+        thisProgram.runSimulation(); // ... your simulation execution code goes in there ...
+
+        thisProgram.tearDownNetworkInterface(); // make sure no processes are left lingering
+
+        System.out.println(TRACE_PREFIX + "complete."); // report successful completion
+    }
+
+    /**
+     * @return whether verboseComments mode is enabled
+     */
+    public boolean isVerboseComments() {
+        return verboseComments;
+    }
+
+    /**
+     * @param newVerboseComments whether verboseComments mode is enabled
+     */
+    public void setVerboseComments(boolean newVerboseComments) {
+        this.verboseComments = newVerboseComments;
+    }
+}
diff --git a/assignments/src/MV3500Cohort2021JulySeptember/homework3/Leckie/PushTest.java b/assignments/src/MV3500Cohort2021JulySeptember/homework3/Leckie/PushTest.java
deleted file mode 100644
index 569b271a49198f5175d723a0592c7dbe15570f34..0000000000000000000000000000000000000000
--- a/assignments/src/MV3500Cohort2021JulySeptember/homework3/Leckie/PushTest.java
+++ /dev/null
@@ -1,19 +0,0 @@
-
-package MV3500Cohort2021JulySeptember.homework3.Leckie;
-
-/**
- *
- * @author Jacob Leckie
- */
-
-
-public class PushTest {
-
-    /**
-     * @param args the command line arguments
-     */
-    public static void main(String[] args) {
-        // This code does nothing it is test of can I push code.
-    }
-    
-}
diff --git a/assignments/src/MV3500Cohort2021JulySeptember/homework3/Leckie/homework3Leckie.java b/assignments/src/MV3500Cohort2021JulySeptember/homework3/Leckie/homework3Leckie.java
new file mode 100644
index 0000000000000000000000000000000000000000..7932050ef8c0f6946f55dfa8d28740a20748ab2e
--- /dev/null
+++ b/assignments/src/MV3500Cohort2021JulySeptember/homework3/Leckie/homework3Leckie.java
@@ -0,0 +1,379 @@
+
+package MV3500Cohort2021JulySeptember.homework3.Leckie;
+
+/**
+ *
+ * @author Jacob Leckie
+ */
+
+/**
+ * Copyright (c) 2008-2021, MOVES Institute, Naval Postgraduate School (NPS). All rights reserved.
+ * This work is provided under a BSD open-source license, see project license.html and license.txt
+ */
+package OpenDis7Examples;
+
+import edu.nps.moves.dis7.enumerations.VariableRecordType;
+import edu.nps.moves.dis7.pdus.CommentPdu;
+import edu.nps.moves.dis7.pdus.EntityID;
+import edu.nps.moves.dis7.pdus.EntityStatePdu;
+import edu.nps.moves.dis7.pdus.FirePdu;
+import edu.nps.moves.dis7.pdus.Pdu;
+import edu.nps.moves.dis7.utilities.DisThreadedNetworkInterface;
+import edu.nps.moves.dis7.utilities.PduFactory;
+import edu.nps.moves.dis7.utilities.stream.PduRecorder;
+import java.util.ArrayList;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/** The purpose of this program is to provide an easily modifiable example simulation program
+ *  that includes DIS-capable entities doing tasks and reporting them to the network.
+ *  Default settings include PDU recording turned on by default.
+ */
+public class homework3Leckie
+{
+    /**
+     * This runSimulation() method is for you! This block is programmer-modifiable method 
+     * for defining and running a new simulation of interest.
+     * Support include DIS EntityStatePdu, FirePdu and CommentPdu all available for 
+     * modification and sending in a simulation loop.
+     * Continuous improvement efforts seek to make this program as easy and straightforward
+     * as possible for new simulation people to use and adapt.
+     * All of the other methods are setup, tear down and configuration that you don't have to worry about.
+     */
+    @SuppressWarnings("SleepWhileInLoop")
+    public void runSimulation ()
+    {
+      try
+      {
+        /** seconds for real-time execution (not simulation time, which may or may not be the same) */
+        final double LOOP_DURATION_SECONDS  =  1.0; 
+        final int    MAX_LOOP_COUNT = 10;   // be deliberate out out there!
+              int    loopCount = 0;         // initialized at 0
+        boolean simulationComplete = false; // sentinel variable as termination condition,, are we done yet?
+        
+        // TODO reset clock to zero each time for consistent outputs
+        
+        // your model setup: who's who in this zoo?
+        // create PDU objects and set their values
+        
+        EntityID       entityID_1    = new EntityID();
+        entityID_1.setSiteID(1).setApplicationID(2).setEntityID(3); // made-up example ID; 
+        // TODO use enumerations; is there a unique site triplet for MOVES Institute?
+
+        EntityStatePdu entityStatePdu = pduFactory.makeEntityStatePdu();
+        entityStatePdu.setEntityID(entityID_1);
+
+        FirePdu               firePdu = pduFactory.makeFirePdu();
+        // should we customize this munition?  what is it for your simulation?
+        
+        // TODO simulation management PDUs for startup
+        
+        // loop the simulation while allowed, programmer can set additional conditions to break out and finish
+        while (loopCount < MAX_LOOP_COUNT)  // are we done yet?
+        {
+            loopCount++; // good practice: increment loop counter as first action
+            // =============================================================================================
+            // ============================================================================================= 
+            // your own simulation code starts here!
+            
+            //  are there any other variables to modify at the beginning of your loop?
+            
+            // compute a track, update an ESPDU, whatever it is that your model is doing...
+            
+            // Where is my entity?  Insert changes in position.
+            entityStatePdu.getEntityLocation().setX(entityStatePdu.getEntityLocation().getX() + 1.0); // 1m per timestep
+            
+            // decide whether to fire, and then update the firePdu.  Hmmm, you might want a target to shoort at!
+            
+            // etc. etc. your code goes here
+                
+            // something happens between my simulation entities, la de da de da...
+            System.out.println ("... My simulation just did something, no really...");
+            
+            
+            // make your reports: narrative code for CommentPdu here (set all to empty strings to avoid sending)
+            narrativeMessage1 = "MV3500 ExampleSimulationProgram";
+            narrativeMessage2 = "runSimulation() loop " + loopCount;
+            narrativeMessage3 = ""; // intentionally blank for testing
+
+            // your loop termination condition goes here
+            if (loopCount > 4) // for example
+            {
+                simulationComplete = true;
+            }      
+            // your own simulation code is finished here! 
+            
+            
+            
+            // =============================================================================================
+            // =============================================================================================
+            // keep track of timestep: wait duration for elapsed time in this loop
+            // Thread.sleep needs a (long) parameter for milliseconds, which are clumsy to use sometimes
+            Thread.sleep((long)(LOOP_DURATION_SECONDS * 1000)); // seconds * (1000 msec/sec) = milliseconds
+            System.out.println ("... [Pausing for " + LOOP_DURATION_SECONDS + " seconds]");
+            
+            // send the status PDUs for this loop and continue
+            System.out.println ("sending PDUs for simulation step " + loopCount + ", monitor loopback to confirm sent");
+            sendAllPdusForLoopTimestep(entityStatePdu, firePdu, timeStepComment, narrativeMessage1, narrativeMessage2, narrativeMessage3);
+            System.out.println ("... [PDUs successfully sent for this loop]");
+            
+            // ===============================
+            // loop now finished, thus terminate if simulation complete, otherwise send latest PDUs and continue
+            if (simulationComplete || (loopCount > 10000)) // for example; including fail-safe condition is good
+            {
+                System.out.println ("... [Termination condition met, simulationComplete=" + simulationComplete + "]"); // ", final loopCount=" + loopCount + 
+                break;
+            }
+        }   // end of while loop
+        // all done
+        narrativeMessage2 = "runSimulation() completed successfully";
+        sendCommentPdu(narrativeComment, narrativeMessage1, narrativeMessage2, narrativeMessage3);
+        System.out.println ("... [final CommentPdu successfully sent for simulation]");
+        // TODO simulation management PDUs
+      } 
+      catch (InterruptedException iex) // handle any exception that your code might choose to provoke!
+      {
+        Logger.getLogger(homework3Leckie.class.getName()).log(Level.SEVERE, null, iex);
+      }
+    }
+    /* **************************** infrastructure code, modification is seldom needed ************************* */
+        
+    private boolean verboseComments = true;
+    String narrativeMessage1 = new String();
+    String narrativeMessage2 = new String();
+    String narrativeMessage3 = new String();
+          
+    /* VariableRecordType enumerations have potential use with CommentPdu logs */
+    VariableRecordType descriptionComment = VariableRecordType.DESCRIPTION;
+    VariableRecordType   narrativeComment = VariableRecordType.COMPLETE_EVENT_REPORT;
+    VariableRecordType      statusComment = VariableRecordType.APPLICATION_STATUS;
+    VariableRecordType    timeStepComment = VariableRecordType.APPLICATION_TIMESTEP;
+    VariableRecordType       otherComment = VariableRecordType.OTHER;
+        
+	/**
+	 * Output prefix to identify this class, helps with logging
+	 */
+    private final static String TRACE_PREFIX = "[" + homework3Leckie.class.getName() + "] ";
+    
+    // class variables
+    PduFactory pduFactory = new PduFactory();
+    DisThreadedNetworkInterface disNetworkInterface;
+    DisThreadedNetworkInterface.PduListener pduListener;
+    Pdu receivedPdu;
+    
+    static final String networkAddress_DEFAULT = "239.1.2.3";
+    static final int    networkPort_DEFAULT    = 3000;
+    static       String networkAddress         = networkAddress_DEFAULT;
+    static       int    networkPort            = networkPort_DEFAULT;
+    
+    /**
+     * Constructor design goal: additional built-in initialization conveniences can go here
+     * to keep student efforts focused on the runSimulation() method.
+     */
+    public homework3Leckie()
+    {
+        // Constructor is under consideration.  Constructor is not currently needed.
+    }
+    
+    /**
+     * Utility Constructor that allows your example simulation program to override default network address and port
+     * @param address network address to use
+     * @param port corresponding network port to use
+     */
+    public homework3Leckie(String address, int port)
+    {
+        setNetworkAddress(address);
+        
+        setNetworkPort(port);
+    }
+
+    /**
+     * @return the networkAddress
+     */
+    public String getNetworkAddress()
+    {
+        return networkAddress;
+    }
+
+    /**
+     * @param newNetworkAddress the networkAddress to set
+     */
+    public final void setNetworkAddress(String newNetworkAddress)
+    {
+        homework3Leckie.networkAddress = newNetworkAddress;
+    }
+
+    /**
+     * @return the networkPort
+     */
+    public int getNetworkPort()
+    {
+        return networkPort;
+    }
+
+    /**
+     * @param newNetworkPort the networkPort to set
+     */
+    public final void setNetworkPort(int newNetworkPort)
+    {
+        homework3Leckie.networkPort = newNetworkPort;
+    }
+
+    /**
+     * Initialize network interface, choosing best available network interface
+     */
+    public void setUpNetworkInterface()
+    {
+        disNetworkInterface = new DisThreadedNetworkInterface(getNetworkAddress(), getNetworkPort());
+        
+        System.out.println("Network confirmation: address=" + disNetworkInterface.getMulticastGroup() + " port=" + disNetworkInterface.getDisPort());
+        pduListener = new DisThreadedNetworkInterface.PduListener()
+        {
+            /** Callback handler for listener */
+            @Override
+            public void incomingPdu(Pdu newPdu)
+            {
+                receivedPdu = newPdu;
+            }
+        };
+        disNetworkInterface.addListener(pduListener);
+    }
+
+    /** All done, release network resources */
+    public void tearDownNetworkInterface()
+    {
+        disNetworkInterface.removeListener(pduListener);
+        disNetworkInterface.kill();
+        disNetworkInterface = null;
+    }
+
+    /** 
+     * Send a single Protocol Data Unit (PDU) of any type
+     * @param pdu the pdu to send
+     */
+    private void sendSinglePdu(Pdu pdu)
+    {
+        try
+        {
+            disNetworkInterface.send(pdu);
+            Thread.sleep(100); // TODO consider refactoring the wait logic and moving externally
+        } 
+        catch (InterruptedException ex)
+        {
+            System.err.println(this.getClass().getName() + " Error sending PDU: " + ex.getLocalizedMessage());
+            System.exit(1);
+        }
+    }
+
+    /**
+     * Send Comment PDU
+     * @see <a href="https://docs.oracle.com/javase/tutorial/java/javaOO/arguments.html">Passing Information to a Method or a Constructor</a> Arbitrary Number of Arguments
+     * @param commentType    enumeration value describing purpose of the narrative comment
+     * @param comments       String array of narrative comments
+     */
+    public void sendCommentPdu(VariableRecordType commentType,
+                                     // vararg... variable-length set of String comments can optionally follow
+                                        String... comments)
+    {
+        sendAllPdusForLoopTimestep (null, null, commentType, comments);
+    }
+
+    /**
+     * Send EntityState, Fire, Comment PDUs that got updated for this loop, reflecting state of current simulation timestep.
+     * @see <a href="https://docs.oracle.com/javase/tutorial/java/javaOO/arguments.html">Passing Information to a Method or a Constructor</a> Arbitrary Number of Arguments
+     * @param entityStatePdu the ESPDU to send, if any
+     * @param firePdu        the FirePDU to send, if any
+     * @param commentType    enumeration value describing purpose of the narrative comment
+     * @param comments       String array of narrative comments
+     */
+    public void sendAllPdusForLoopTimestep(EntityStatePdu entityStatePdu,
+                                   FirePdu firePdu,
+                        VariableRecordType commentType,
+                              // vararg... variable-length set of String comments can optionally follow
+                                 String... comments)
+    {
+        if (entityStatePdu != null)
+            sendSinglePdu(entityStatePdu);
+            
+        if (firePdu != null)
+            sendSinglePdu(firePdu); // bang
+        
+        if ((comments != null) && (comments.length > 0))
+        {
+            ArrayList<String> newCommentsList = new ArrayList<>();
+            for (int i = 0; i < comments.length; i++)
+            {
+                if (!comments[i].isEmpty())
+                     newCommentsList.add(comments[i]); // OK found something to send
+            }
+            if (!newCommentsList.isEmpty())
+            {
+                if (commentType == null)
+                    commentType = otherComment; // fallback value otherComment
+                // now build the commentPdu from these string inputs, thus constructing a narrative entry
+                CommentPdu commentPdu = pduFactory.makeCommentPdu(commentType, newCommentsList.toArray(new String[0])); // comments);
+                sendSinglePdu(commentPdu);
+                if (isVerboseComments())
+                    System.out.println("*** [Narrative comment sent: " + commentType.name() + "] " + newCommentsList.toString());
+            }
+        }
+    }
+  
+    /**
+     * Main method is first executed when a program instance is loaded.
+     * @see <a href="https://docs.oracle.com/javase/tutorial/getStarted/application/index.html">Java Tutorials: A Closer Look at the "Hello World!" Application</a>
+     * @param args command-line arguments are an array of optional String parameters that are passed from execution environment during invocation
+     */
+    public static void main(String[] args)
+    {
+        System.out.println(TRACE_PREFIX + "started...");
+        
+        homework3Leckie thisProgram = new homework3Leckie(); // creates instance
+        
+        // initial execution: can handle args array of initialization arguments here
+        if (args.length == 2)
+        {
+            if ((args[0] != null) && !args[0].isEmpty())
+                thisProgram.setNetworkAddress(args[0]);
+            
+            if ((args[1] != null) && !args[1].isEmpty())
+                thisProgram.setNetworkPort(Integer.parseInt(args[1]));
+        }
+        else if (args.length != 0)
+        {
+            System.err.println("Usage: " + thisProgram.getClass().getName() + " [address port]");
+            System.exit(-1);
+        }
+        // OK here we go...
+
+        thisProgram.setUpNetworkInterface();
+        
+        String DEFAULT_OUTPUT_DIRECTORY = "./pduLog";
+        String outputDirectory = DEFAULT_OUTPUT_DIRECTORY;
+        System.out.println("Beginning pdu save to directory " + outputDirectory);
+        PduRecorder pduRecorder = new PduRecorder(outputDirectory, networkAddress, networkPort); // assumes save
+
+        thisProgram.runSimulation (); // ... your simulation execution code goes in there ...
+        
+//        pduRecorder.end();  // ".end()" was throwing an error.
+        pduRecorder.stop();
+
+        thisProgram.tearDownNetworkInterface(); // make sure no processes are left lingering
+        
+        System.out.println(TRACE_PREFIX + "complete."); // report successful completion
+    }
+
+    /**
+     * @return whether verboseComments mode is enabled
+     */
+    public boolean isVerboseComments() {
+        return verboseComments;
+    }
+
+    /**
+     * @param newVerboseComments whether verboseComments mode is enabled
+     */
+    public void setVerboseComments(boolean newVerboseComments) {
+        this.verboseComments = newVerboseComments;
+    }
+}
diff --git a/assignments/src/MV3500Cohort2021JulySeptember/homework3/Morris/MorrisSimulationProgram.java b/assignments/src/MV3500Cohort2021JulySeptember/homework3/Morris/MorrisSimulationProgram.java
new file mode 100644
index 0000000000000000000000000000000000000000..8911ca6214c743f7535fe6bccfdfabb6adce4134
--- /dev/null
+++ b/assignments/src/MV3500Cohort2021JulySeptember/homework3/Morris/MorrisSimulationProgram.java
@@ -0,0 +1,392 @@
+/**
+ * Copyright (c) 2008-2021, MOVES Institute, Naval Postgraduate School (NPS). All rights reserved.
+ * This work is provided under a BSD open-source license, see project license.html and license.txt
+ *
+ *
+ */
+package MV3500Cohort2021JulySeptember.homework3.Morris;
+
+import edu.nps.moves.dis7.enumerations.VariableRecordType;
+import edu.nps.moves.dis7.pdus.CommentPdu;
+import edu.nps.moves.dis7.pdus.EntityID;
+import edu.nps.moves.dis7.pdus.EntityStatePdu;
+import edu.nps.moves.dis7.pdus.FirePdu;
+import edu.nps.moves.dis7.pdus.Pdu;
+import edu.nps.moves.dis7.utilities.DisThreadedNetworkInterface;
+import edu.nps.moves.dis7.utilities.PduFactory;
+import edu.nps.moves.dis7.utilities.stream.PduRecorder;
+import java.util.ArrayList;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/** The purpose of this program is to provide an easily modifiable example simulation program
+ *  that includes DIS-capable entities doing tasks and reporting them to the network.
+ *  Default settings include PDU recording turned on by default.
+ */
+public class MorrisSimulationProgram
+{
+    private      boolean verboseComments         = true;
+    static final String  NETWORK_ADDRESS_DEFAULT  = "239.1.2.3";
+    static final int     NETWORK_PORT_DEFAULT     = 3000;
+    static       String  networkAddress           = NETWORK_ADDRESS_DEFAULT;
+    static       int     networkPort              = NETWORK_PORT_DEFAULT;
+                 String  DEFAULT_OUTPUT_DIRECTORY = "./pduLog";
+                 
+    /**
+     * This runSimulationLoops() method is for you, a
+     * programmer-modifiable method for defining and running a new simulation of interest.
+     * Welcome! Other parts of this program handle bookkeeping and plumbing tasks so that
+     * you can focus on your model entities and activities.
+     * Expandable support includes DIS EntityStatePdu, FirePdu and CommentPdu all available for 
+     * modification and sending in a simulation loop.
+     * Continuous improvement efforts seek to make this program as easy and straightforward
+     * as possible for DIS simulationists to use and adapt.
+     * All of the other methods are setup, teardown and configuration that you may find
+     * interesting, even helpful, but don't really have to worry about.
+     */
+    @SuppressWarnings("SleepWhileInLoop1") // yes we do that
+    public void runSimulationLoops () throws Exception
+    {
+      try
+      {
+        /** seconds for real-time execution (not simulation time, which may or may not be the same) */
+        final double  SIMULATION_LOOP_DURATION_SECONDS  =  1.0; 
+        final int     SIMULATION_MAX_LOOP_COUNT = 10; // be deliberate out out there!  also avoid infinite loops.
+              int     simulationLoopCount = 0;        // variable, initialized at 0
+              boolean simulationComplete = false;     // sentinel variable as termination condition,, are we done yet?
+        
+        // TODO reset clock to zero each time for consistent outputs
+        
+        // Your model setup: define participants.  who's who in this zoo?
+        // Assuming you keep track of entity objects...  here is some support for for Entity 1.
+        
+        // create PDU objects and set their values.
+        EntityID       entityID_1    = new EntityID();
+        entityID_1.setSiteID(1).setApplicationID(2).setEntityID(3); // made-up example ID; 
+        // TODO someday, use enumerations; is there a unique site triplet for MOVES Institute?
+
+        EntityStatePdu entityStatePdu_1 = pduFactory.makeEntityStatePdu();
+        entityStatePdu_1.setEntityID(entityID_1);
+
+        FirePdu        firePdu_1a       = pduFactory.makeFirePdu(); // for entity 1 first  weapon (if any)
+        //FirePdu        firePdu_1b       = pduFactory.makeFirePdu(); // for entity 1 second weapon (if any)
+        // should we customize this munition?  what is it for your simulation?
+        
+        // TODO simulation management PDUs for startup, planning to design special class support
+        
+        // loop the simulation while allowed, programmer can set additional conditions to break out and finish
+        while (simulationLoopCount < SIMULATION_MAX_LOOP_COUNT)  // are we done yet?
+        {
+            simulationLoopCount++; // good practice: increment loop counter as first action in that loop
+            
+            // =============================================================================================
+            // * your own simulation code starts here! *
+            // =============================================================================================
+             // Where is my entity?  Insert changes in position.
+
+            //  are there any other variables to modify at the beginning of your loop?
+            
+            // compute a track, update an ESPDU, whatever it is that your model is doing...
+            
+            // Where is my entity?  Insert changes in position; this sample only changes X position.
+
+    entityStatePdu_1.getEntityLocation().setX(entityStatePdu_1.getEntityLocation().getX() + 1.0); // 1m per timestep
+
+                // decide whether to fire, and then update the firePdu.  Hmmm, you might want a target to shoort at!
+                firePdu_1a.setLocationInWorldCoordinates(entityStatePdu_1.getEntityLocation());
+                byte[] fireArray = firePdu_1a.marshal();
+
+                System.out.println("FirePdu_1 #" + simulationLoopCount + " firePdu=[FireMissionIndex=" + firePdu_1a.getFireMissionIndex() + ", descriptor=" + firePdu_1a.getDescriptor() + "]");
+            // etc. etc. your code goes here for your simulation of interest
+                
+            // something happens between my simulation entities, la de da de da...
+            System.out.println ("... My simulation just did something, no really...");
+            
+            
+            // make your reports: narrative code for CommentPdu here (set all to empty strings to avoid sending)
+            narrativeMessage1 = "MV3500 MorrisSimulationProgram";
+            narrativeMessage2 = "runSimulation() loop " + simulationLoopCount;
+            narrativeMessage3 = ""; // intentionally blank for testing
+
+            // your loop termination condition goes here
+            if (simulationLoopCount > 4) // for example
+            {
+                simulationComplete = true;
+            }      
+            // =============================================================================================
+            // * your own simulation code is finished here! *
+            // =============================================================================================
+            
+            // staying synchronized with timestep: wait duration for elapsed time in this loop
+            // Thread.sleep needs a (long) parameter for milliseconds, which are clumsy to use sometimes
+            Thread.sleep((long)(SIMULATION_LOOP_DURATION_SECONDS * 1000)); // seconds * (1000 msec/sec) = milliseconds
+            System.out.println ("... [Pausing for " + SIMULATION_LOOP_DURATION_SECONDS + " seconds]");
+            
+            // OK now send the status PDUs for this loop, and then continue
+            System.out.println ("sending PDUs for simulation step " + simulationLoopCount + ", monitor loopback to confirm sent");
+            sendAllPdusForLoopTimestep(entityStatePdu_1, firePdu_1a, timeStepComment, narrativeMessage1, narrativeMessage2, narrativeMessage3);
+            System.out.println ("... [PDUs successfully sent for this loop]");
+            
+            // ===============================
+            // loop now finished, check whether to terminate if simulation complete, otherwise continue
+            if (simulationComplete || (simulationLoopCount > 10000)) // for example; including fail-safe condition is good
+            {
+                System.out.println ("... [Termination condition met, simulationComplete=" + simulationComplete + "]"); // ", final loopCount=" + loopCount + 
+                break;
+            }
+        }   // end of simulation loop
+        
+        narrativeMessage2 = "runSimulation() completed successfully"; // all done
+        sendCommentPdu(narrativeComment, narrativeMessage1, narrativeMessage2, narrativeMessage3);
+        System.out.println ("... [final CommentPdu successfully sent for simulation]");
+        // TODO simulation management PDUs
+      } 
+      catch (InterruptedException iex) // handle any exception that your code might choose to provoke!
+      {
+        Logger.getLogger(MorrisSimulationProgram.class.getName()).log(Level.SEVERE, null, iex);
+      }
+    }
+    /* **************************** infrastructure code, modification is seldom needed ************************* */
+                 
+    String narrativeMessage1 = new String();
+    String narrativeMessage2 = new String();
+    String narrativeMessage3 = new String();
+          
+    /* VariableRecordType enumerations have potential use with CommentPdu logs */
+    /* TODO contrast to EntityType */
+    VariableRecordType descriptionComment = VariableRecordType.DESCRIPTION;
+    VariableRecordType   narrativeComment = VariableRecordType.COMPLETE_EVENT_REPORT;
+    VariableRecordType      statusComment = VariableRecordType.APPLICATION_STATUS;
+    VariableRecordType    timeStepComment = VariableRecordType.APPLICATION_TIMESTEP;
+    VariableRecordType       otherComment = VariableRecordType.OTHER;
+        
+	/**
+	 * Output prefix to identify this class, helps with logging
+	 */
+    private final static String TRACE_PREFIX = "[" + MorrisSimulationProgram.class.getName() + "] ";
+    
+    // class variables
+    PduFactory                              pduFactory = new PduFactory();
+    DisThreadedNetworkInterface             disNetworkInterface;
+    DisThreadedNetworkInterface.PduListener pduListener;
+    Pdu                                     receivedPdu;
+    PduRecorder                             pduRecorder;
+    
+    /**
+     * Constructor design goal: additional built-in initialization conveniences can go here
+     * to keep student efforts focused on the runSimulation() method.
+     */
+    public MorrisSimulationProgram()
+    {
+        // Constructor is under consideration.  Constructor is not currently needed.
+    }
+    
+    /**
+     * Utility Constructor that allows your example simulation program to override default network address and port
+     * @param address network address to use
+     * @param port corresponding network port to use
+     */
+    public MorrisSimulationProgram(String address, int port)
+    {
+        setNetworkAddress(address);
+        
+        setNetworkPort(port);
+    }
+
+    /**
+     * @return the networkAddress
+     */
+    public String getNetworkAddress()
+    {
+        return networkAddress;
+    }
+
+    /**
+     * @param newNetworkAddress the networkAddress to set
+     */
+    public final void setNetworkAddress(String newNetworkAddress)
+    {
+        MorrisSimulationProgram.networkAddress = newNetworkAddress;
+    }
+
+    /**
+     * @return the networkPort
+     */
+    public int getNetworkPort()
+    {
+        return networkPort;
+    }
+
+    /**
+     * @param newNetworkPort the networkPort to set
+     */
+    public final void setNetworkPort(int newNetworkPort)
+    {
+        MorrisSimulationProgram.networkPort = newNetworkPort;
+    }
+
+    /**
+     * Initialize network interface, choosing best available network interface
+     */
+    public void setUpNetworkInterface()
+    {
+        disNetworkInterface = new DisThreadedNetworkInterface(getNetworkAddress(), getNetworkPort());
+        disNetworkInterface.setDescriptor ("MorrisSimulationProgram pdu looping");
+        
+        System.out.println("Network confirmation:" +
+               " address=" + disNetworkInterface.getAddress()+ //  disNetworkInterface.getMulticastGroup() + 
+                  " port=" + disNetworkInterface.getPort());   // + disNetworkInterface.getDisPort());
+        pduListener = new DisThreadedNetworkInterface.PduListener()
+        {
+            /** Callback handler for listener */
+            @Override
+            public void incomingPdu(Pdu newPdu)
+            {
+                receivedPdu = newPdu;
+            }
+        };
+        disNetworkInterface.addListener(pduListener);
+        
+        String outputDirectory = DEFAULT_OUTPUT_DIRECTORY;
+        System.out.println("Beginning pdu save to directory " + outputDirectory);
+        pduRecorder = new PduRecorder(outputDirectory, getNetworkAddress(), getNetworkPort()); // assumes save
+        pduRecorder.setDescriptor ("MorrisSimulationProgram pduRecorder");
+        pduRecorder.start(); // begin running
+    }
+
+    /** All done, release network resources */
+    public void tearDownNetworkInterface()
+    {
+        pduRecorder.stop();
+
+        disNetworkInterface.removeListener(pduListener);
+        
+        disNetworkInterface.close();
+//      disNetworkInterface.kill(); // renamed as close(), deprecated
+//      disNetworkInterface = null; // making sure no possibility of zombie process remaining...
+    }
+
+    /** 
+     * Send a single Protocol Data Unit (PDU) of any type
+     * @param pdu the pdu to send
+     */
+    private void sendSinglePdu(Pdu pdu)
+    {
+        try
+        {
+            disNetworkInterface.send(pdu);
+            Thread.sleep(100); // TODO consider refactoring the wait logic and moving externally
+        } 
+        catch (InterruptedException ex)
+        {
+            System.err.println(this.getClass().getName() + " Error sending PDU: " + ex.getLocalizedMessage());
+            System.exit(1);
+        }
+    }
+
+    /**
+     * Send Comment PDU
+     * @see <a href="https://docs.oracle.com/javase/tutorial/java/javaOO/arguments.html">Passing Information to a Method or a Constructor</a> Arbitrary Number of Arguments
+     * @param commentType    enumeration value describing purpose of the narrative comment
+     * @param comments       String array of narrative comments
+     */
+    public void sendCommentPdu(VariableRecordType commentType,
+                                     // vararg... variable-length set of String comments can optionally follow
+                                        String... comments)
+    {
+        sendAllPdusForLoopTimestep (null, null, commentType, comments);
+    }
+
+    /**
+     * Send EntityState, Fire, Comment PDUs that got updated for this loop, reflecting state of current simulation timestep.
+     * @see <a href="https://docs.oracle.com/javase/tutorial/java/javaOO/arguments.html">Passing Information to a Method or a Constructor</a> Arbitrary Number of Arguments
+     * @param entityStatePdu the ESPDU to send, if any
+     * @param firePdu        the FirePDU to send, if any
+     * @param commentType    enumeration value describing purpose of the narrative comment
+     * @param comments       String array of narrative comments
+     */
+    public void sendAllPdusForLoopTimestep(EntityStatePdu entityStatePdu,
+                                   FirePdu firePdu,
+                        VariableRecordType commentType,
+                              // vararg... variable-length set of String comments can optionally follow
+                                 String... comments)
+    {
+        if (entityStatePdu != null)
+            sendSinglePdu(entityStatePdu);
+            
+        if (firePdu != null)
+            sendSinglePdu(firePdu); // bang
+        
+        if ((comments != null) && (comments.length > 0))
+        {
+            ArrayList<String> newCommentsList = new ArrayList<>();
+            for (String comment : comments)
+            {
+                if (!comment.isEmpty())
+                {
+                    newCommentsList.add(comment); // OK found something to send
+                }
+            }
+            if (!newCommentsList.isEmpty())
+            {
+                if (commentType == null)
+                    commentType = otherComment; // fallback value otherComment
+                // now build the commentPdu from these string inputs, thus constructing a narrative entry
+                CommentPdu commentPdu = pduFactory.makeCommentPdu(commentType, newCommentsList.toArray(new String[0])); // comments);
+                sendSinglePdu(commentPdu);
+                if (isVerboseComments())
+                    System.out.println("*** [Narrative comment sent: " + commentType.name() + "] " + newCommentsList.toString());
+            }
+        }
+    }
+  
+    /**
+     * Main method is first executed when a program instance is loaded.
+     * @see <a href="https://docs.oracle.com/javase/tutorial/getStarted/application/index.html">Java Tutorials: A Closer Look at the "Hello World!" Application</a>
+     * @param args command-line arguments are an array of optional String parameters that are passed from execution environment during invocation
+     */
+    public static void main(String[] args) throws Exception
+    {
+        System.out.println(TRACE_PREFIX + "started...");
+        
+        MorrisSimulationProgram thisProgram = new MorrisSimulationProgram(); // creates instance
+        
+        // initial execution: can handle args array of initialization arguments here
+        if (args.length == 2)
+        {
+            if ((args[0] != null) && !args[0].isEmpty())
+                thisProgram.setNetworkAddress(args[0]);
+            
+            if ((args[1] != null) && !args[1].isEmpty())
+                thisProgram.setNetworkPort(Integer.parseInt(args[1]));
+        }
+        else if (args.length != 0)
+        {
+            System.err.println("Usage: " + thisProgram.getClass().getName() + " [address port]");
+            System.exit(-1);
+        }
+        // OK here we go...
+
+        thisProgram.setUpNetworkInterface();
+
+        thisProgram.runSimulationLoops (); // ... your simulation execution code goes in there ...
+        
+        thisProgram.tearDownNetworkInterface(); // make sure no processes are left lingering
+        
+        System.out.println(TRACE_PREFIX + "Morris complete."); // report successful completion
+    }
+
+    /**
+     * @return whether verboseComments mode is enabled
+     */
+    public boolean isVerboseComments() {
+        return verboseComments;
+    }
+
+    /**
+     * @param newVerboseComments whether verboseComments mode is enabled
+     */
+    public void setVerboseComments(boolean newVerboseComments) {
+        this.verboseComments = newVerboseComments;
+    }
+}
diff --git a/examples/src/OpenDis7Examples/ExampleSimulationProgram.java b/examples/src/OpenDis7Examples/ExampleSimulationProgram.java
index 0854bf65de783e8211a1c47476662cee47b9ab93..2bd6d9599cb0870007d3b0625bc01c772562045b 100644
--- a/examples/src/OpenDis7Examples/ExampleSimulationProgram.java
+++ b/examples/src/OpenDis7Examples/ExampleSimulationProgram.java
@@ -5,12 +5,8 @@
  */
 package OpenDis7Examples;
 
-import edu.nps.moves.dis7.enumerations.VariableRecordType;
-import edu.nps.moves.dis7.pdus.CommentPdu;
-import edu.nps.moves.dis7.pdus.EntityID;
-import edu.nps.moves.dis7.pdus.EntityStatePdu;
-import edu.nps.moves.dis7.pdus.FirePdu;
-import edu.nps.moves.dis7.pdus.Pdu;
+import edu.nps.moves.dis7.enumerations.*; // match any
+import edu.nps.moves.dis7.pdus.*;         // match any of the PDU classes, easier than listing individually
 import edu.nps.moves.dis7.utilities.DisThreadedNetworkInterface;
 import edu.nps.moves.dis7.utilities.PduFactory;
 import edu.nps.moves.dis7.utilities.stream.PduRecorder;
@@ -62,10 +58,18 @@ public class ExampleSimulationProgram
         // create PDU objects and set their values.
         EntityID       entityID_1    = new EntityID();
         entityID_1.setSiteID(1).setApplicationID(2).setEntityID(3); // made-up example ID; 
+        // create PDU objects and set their values.
+        EntityID       entityID_2    = new EntityID();
+        entityID_1.setSiteID(1).setApplicationID(2).setEntityID(4); // made-up example ID; 
         // TODO someday, use enumerations; is there a unique site triplet for MOVES Institute?
 
         EntityStatePdu entityStatePdu_1 = pduFactory.makeEntityStatePdu();
         entityStatePdu_1.setEntityID(entityID_1);
+        entityStatePdu_1.setForceId(ForceID.FRIENDLY);
+
+        EntityStatePdu entityStatePdu_2 = pduFactory.makeEntityStatePdu();
+        entityStatePdu_2.setEntityID(entityID_2);
+        entityStatePdu_2.setForceId(ForceID.OPPOSING);
 
         FirePdu        firePdu_1a       = pduFactory.makeFirePdu(); // for entity 1 first  weapon (if any)
         FirePdu        firePdu_1b       = pduFactory.makeFirePdu(); // for entity 1 second weapon (if any)
@@ -88,7 +92,7 @@ public class ExampleSimulationProgram
             
             // Where is my entity?  Insert changes in position; this sample only changes X position.
             entityStatePdu_1.getEntityLocation().setX(entityStatePdu_1.getEntityLocation().getX() + 1.0); // 1m per timestep
-
+            
             // decide whether to fire, and then update the firePdu.  Hmmm, you might want a target to shoort at!
             
             // etc. etc. your code goes here for your simulation of interest
@@ -119,6 +123,7 @@ public class ExampleSimulationProgram
             // OK now send the status PDUs for this loop, and then continue
             System.out.println ("sending PDUs for simulation step " + simulationLoopCount + ", monitor loopback to confirm sent");
             sendAllPdusForLoopTimestep(entityStatePdu_1, firePdu_1a, timeStepComment, narrativeMessage1, narrativeMessage2, narrativeMessage3);
+            sendSinglePdu(entityStatePdu_2); // me too i.e. 2!
             System.out.println ("... [PDUs successfully sent for this loop]");
             
             // ===============================