diff --git a/MegaMek/Assignment4UseCaseDiagram.ucd b/MegaMek/Assignment4UseCaseDiagram.ucd
new file mode 100644
index 00000000..d9409393
--- /dev/null
+++ b/MegaMek/Assignment4UseCaseDiagram.ucd
@@ -0,0 +1,398 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<net.java.amateras.uml.usecasediagram.model.UsecaseRootModel>
+  <backgroundColor>
+    <red>255</red>
+    <green>255</green>
+    <blue>206</blue>
+  </backgroundColor>
+  <foregroundColor>
+    <red>0</red>
+    <green>0</green>
+    <blue>0</blue>
+  </foregroundColor>
+  <showIcon>true</showIcon>
+  <listeners serialization="custom">
+    <java.beans.PropertyChangeSupport>
+      <default>
+        <source class="net.java.amateras.uml.usecasediagram.model.UsecaseRootModel" reference="../../../.."/>
+        <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+      </default>
+      <null/>
+    </java.beans.PropertyChangeSupport>
+  </listeners>
+  <sourceConnections/>
+  <targetConnections/>
+  <children>
+    <net.java.amateras.uml.usecasediagram.model.UsecaseActorModel>
+      <backgroundColor reference="../../../backgroundColor"/>
+      <foregroundColor reference="../../../foregroundColor"/>
+      <showIcon>true</showIcon>
+      <parent class="net.java.amateras.uml.usecasediagram.model.UsecaseRootModel" reference="../../.."/>
+      <listeners serialization="custom">
+        <java.beans.PropertyChangeSupport>
+          <default>
+            <source class="net.java.amateras.uml.usecasediagram.model.UsecaseActorModel" reference="../../../.."/>
+            <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+          </default>
+          <null/>
+        </java.beans.PropertyChangeSupport>
+      </listeners>
+      <constraint>
+        <height>-1</height>
+        <width>-1</width>
+        <x>40</x>
+        <y>91</y>
+      </constraint>
+      <sourceConnections>
+        <net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel>
+          <showIcon>true</showIcon>
+          <listeners serialization="custom">
+            <java.beans.PropertyChangeSupport>
+              <default>
+                <source class="net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel" reference="../../../.."/>
+                <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+              </default>
+              <null/>
+            </java.beans.PropertyChangeSupport>
+          </listeners>
+          <source class="net.java.amateras.uml.usecasediagram.model.UsecaseActorModel" reference="../../.."/>
+          <target class="net.java.amateras.uml.usecasediagram.model.UsecaseModel">
+            <backgroundColor reference="../../../../../../backgroundColor"/>
+            <foregroundColor reference="../../../../../../foregroundColor"/>
+            <showIcon>true</showIcon>
+            <parent class="net.java.amateras.uml.usecasediagram.model.UsecaseRootModel" reference="../../../../../.."/>
+            <listeners serialization="custom">
+              <java.beans.PropertyChangeSupport>
+                <default>
+                  <source class="net.java.amateras.uml.usecasediagram.model.UsecaseModel" reference="../../../.."/>
+                  <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                </default>
+                <null/>
+              </java.beans.PropertyChangeSupport>
+            </listeners>
+            <constraint>
+              <height>40</height>
+              <width>100</width>
+              <x>245</x>
+              <y>99</y>
+            </constraint>
+            <sourceConnections/>
+            <targetConnections>
+              <net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel reference="../../.."/>
+              <net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel>
+                <showIcon>true</showIcon>
+                <listeners serialization="custom">
+                  <java.beans.PropertyChangeSupport>
+                    <default>
+                      <source class="net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel" reference="../../../.."/>
+                      <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                    </default>
+                    <null/>
+                  </java.beans.PropertyChangeSupport>
+                </listeners>
+                <source class="net.java.amateras.uml.usecasediagram.model.UsecaseActorModel">
+                  <backgroundColor reference="../../../../../../../../../backgroundColor"/>
+                  <foregroundColor reference="../../../../../../../../../foregroundColor"/>
+                  <showIcon>true</showIcon>
+                  <parent class="net.java.amateras.uml.usecasediagram.model.UsecaseRootModel" reference="../../../../../../../../.."/>
+                  <listeners serialization="custom">
+                    <java.beans.PropertyChangeSupport>
+                      <default>
+                        <source class="net.java.amateras.uml.usecasediagram.model.UsecaseActorModel" reference="../../../.."/>
+                        <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                      </default>
+                      <null/>
+                    </java.beans.PropertyChangeSupport>
+                  </listeners>
+                  <constraint>
+                    <height>-1</height>
+                    <width>-1</width>
+                    <x>45</x>
+                    <y>347</y>
+                  </constraint>
+                  <sourceConnections>
+                    <net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel reference="../../.."/>
+                    <net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel>
+                      <showIcon>true</showIcon>
+                      <listeners serialization="custom">
+                        <java.beans.PropertyChangeSupport>
+                          <default>
+                            <source class="net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel" reference="../../../.."/>
+                            <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                          </default>
+                          <null/>
+                        </java.beans.PropertyChangeSupport>
+                      </listeners>
+                      <source class="net.java.amateras.uml.usecasediagram.model.UsecaseActorModel" reference="../../.."/>
+                      <target class="net.java.amateras.uml.usecasediagram.model.UsecaseModel">
+                        <backgroundColor reference="../../../../../../../../../../../../backgroundColor"/>
+                        <foregroundColor reference="../../../../../../../../../../../../foregroundColor"/>
+                        <showIcon>true</showIcon>
+                        <parent class="net.java.amateras.uml.usecasediagram.model.UsecaseRootModel" reference="../../../../../../../../../../../.."/>
+                        <listeners serialization="custom">
+                          <java.beans.PropertyChangeSupport>
+                            <default>
+                              <source class="net.java.amateras.uml.usecasediagram.model.UsecaseModel" reference="../../../.."/>
+                              <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                            </default>
+                            <null/>
+                          </java.beans.PropertyChangeSupport>
+                        </listeners>
+                        <constraint>
+                          <height>40</height>
+                          <width>100</width>
+                          <x>249</x>
+                          <y>204</y>
+                        </constraint>
+                        <sourceConnections/>
+                        <targetConnections>
+                          <net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel reference="../../.."/>
+                          <net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel>
+                            <showIcon>true</showIcon>
+                            <listeners serialization="custom">
+                              <java.beans.PropertyChangeSupport>
+                                <default>
+                                  <source class="net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel" reference="../../../.."/>
+                                  <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                                </default>
+                                <null/>
+                              </java.beans.PropertyChangeSupport>
+                            </listeners>
+                            <source class="net.java.amateras.uml.usecasediagram.model.UsecaseActorModel" reference="../../../../../../../../../../../.."/>
+                            <target class="net.java.amateras.uml.usecasediagram.model.UsecaseModel" reference="../../.."/>
+                            <bendpoints/>
+                          </net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel>
+                        </targetConnections>
+                        <children/>
+                        <filterProperty/>
+                        <name>Load Saved Game</name>
+                      </target>
+                      <bendpoints/>
+                    </net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel>
+                  </sourceConnections>
+                  <targetConnections/>
+                  <children/>
+                  <filterProperty/>
+                  <name>AI</name>
+                </source>
+                <target class="net.java.amateras.uml.usecasediagram.model.UsecaseModel" reference="../../.."/>
+                <bendpoints/>
+              </net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel>
+            </targetConnections>
+            <children/>
+            <filterProperty/>
+            <name>Start Scenario</name>
+          </target>
+          <bendpoints/>
+        </net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel>
+        <net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel reference="../net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel/target/targetConnections/net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel[2]/source/sourceConnections/net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel[2]/target/targetConnections/net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel[2]"/>
+        <net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel>
+          <showIcon>true</showIcon>
+          <listeners serialization="custom">
+            <java.beans.PropertyChangeSupport>
+              <default>
+                <source class="net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel" reference="../../../.."/>
+                <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+              </default>
+              <null/>
+            </java.beans.PropertyChangeSupport>
+          </listeners>
+          <source class="net.java.amateras.uml.usecasediagram.model.UsecaseActorModel" reference="../../.."/>
+          <target class="net.java.amateras.uml.usecasediagram.model.UsecaseModel">
+            <backgroundColor reference="../../../../../../backgroundColor"/>
+            <foregroundColor reference="../../../../../../foregroundColor"/>
+            <showIcon>true</showIcon>
+            <parent class="net.java.amateras.uml.usecasediagram.model.UsecaseRootModel" reference="../../../../../.."/>
+            <listeners serialization="custom">
+              <java.beans.PropertyChangeSupport>
+                <default>
+                  <source class="net.java.amateras.uml.usecasediagram.model.UsecaseModel" reference="../../../.."/>
+                  <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                </default>
+                <null/>
+              </java.beans.PropertyChangeSupport>
+            </listeners>
+            <constraint>
+              <height>40</height>
+              <width>118</width>
+              <x>248</x>
+              <y>292</y>
+            </constraint>
+            <sourceConnections/>
+            <targetConnections>
+              <net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel reference="../../.."/>
+              <net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel>
+                <showIcon>true</showIcon>
+                <listeners serialization="custom">
+                  <java.beans.PropertyChangeSupport>
+                    <default>
+                      <source class="net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel" reference="../../../.."/>
+                      <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                    </default>
+                    <null/>
+                  </java.beans.PropertyChangeSupport>
+                </listeners>
+                <source class="net.java.amateras.uml.usecasediagram.model.UsecaseActorModel">
+                  <backgroundColor reference="../../../../../../../../../backgroundColor"/>
+                  <foregroundColor reference="../../../../../../../../../foregroundColor"/>
+                  <showIcon>true</showIcon>
+                  <parent class="net.java.amateras.uml.usecasediagram.model.UsecaseRootModel" reference="../../../../../../../../.."/>
+                  <listeners serialization="custom">
+                    <java.beans.PropertyChangeSupport>
+                      <default>
+                        <source class="net.java.amateras.uml.usecasediagram.model.UsecaseActorModel" reference="../../../.."/>
+                        <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                      </default>
+                      <null/>
+                    </java.beans.PropertyChangeSupport>
+                  </listeners>
+                  <constraint>
+                    <height>-1</height>
+                    <width>-1</width>
+                    <x>39</x>
+                    <y>179</y>
+                  </constraint>
+                  <sourceConnections>
+                    <net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel reference="../../.."/>
+                  </sourceConnections>
+                  <targetConnections/>
+                  <children/>
+                  <filterProperty/>
+                  <name>Player 2</name>
+                </source>
+                <target class="net.java.amateras.uml.usecasediagram.model.UsecaseModel" reference="../../.."/>
+                <bendpoints/>
+              </net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel>
+              <net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel>
+                <showIcon>true</showIcon>
+                <listeners serialization="custom">
+                  <java.beans.PropertyChangeSupport>
+                    <default>
+                      <source class="net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel" reference="../../../.."/>
+                      <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                    </default>
+                    <null/>
+                  </java.beans.PropertyChangeSupport>
+                </listeners>
+                <source class="net.java.amateras.uml.usecasediagram.model.UsecaseActorModel">
+                  <backgroundColor reference="../../../../../../../../../backgroundColor"/>
+                  <foregroundColor reference="../../../../../../../../../foregroundColor"/>
+                  <showIcon>true</showIcon>
+                  <parent class="net.java.amateras.uml.usecasediagram.model.UsecaseRootModel" reference="../../../../../../../../.."/>
+                  <listeners serialization="custom">
+                    <java.beans.PropertyChangeSupport>
+                      <default>
+                        <source class="net.java.amateras.uml.usecasediagram.model.UsecaseActorModel" reference="../../../.."/>
+                        <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                      </default>
+                      <null/>
+                    </java.beans.PropertyChangeSupport>
+                  </listeners>
+                  <constraint>
+                    <height>-1</height>
+                    <width>-1</width>
+                    <x>35</x>
+                    <y>265</y>
+                  </constraint>
+                  <sourceConnections>
+                    <net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel reference="../../.."/>
+                  </sourceConnections>
+                  <targetConnections/>
+                  <children/>
+                  <filterProperty/>
+                  <name>Spectator</name>
+                </source>
+                <target class="net.java.amateras.uml.usecasediagram.model.UsecaseModel" reference="../../.."/>
+                <bendpoints/>
+              </net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel>
+            </targetConnections>
+            <children/>
+            <filterProperty/>
+            <name>Connect to a Game</name>
+          </target>
+          <bendpoints/>
+        </net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel>
+        <net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel>
+          <showIcon>true</showIcon>
+          <listeners serialization="custom">
+            <java.beans.PropertyChangeSupport>
+              <default>
+                <source class="net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel" reference="../../../.."/>
+                <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+              </default>
+              <null/>
+            </java.beans.PropertyChangeSupport>
+          </listeners>
+          <source class="net.java.amateras.uml.usecasediagram.model.UsecaseActorModel" reference="../../.."/>
+          <target class="net.java.amateras.uml.usecasediagram.model.UsecaseModel">
+            <backgroundColor reference="../../../../../../backgroundColor"/>
+            <foregroundColor reference="../../../../../../foregroundColor"/>
+            <showIcon>true</showIcon>
+            <parent class="net.java.amateras.uml.usecasediagram.model.UsecaseRootModel" reference="../../../../../.."/>
+            <listeners serialization="custom">
+              <java.beans.PropertyChangeSupport>
+                <default>
+                  <source class="net.java.amateras.uml.usecasediagram.model.UsecaseModel" reference="../../../.."/>
+                  <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                </default>
+                <null/>
+              </java.beans.PropertyChangeSupport>
+            </listeners>
+            <constraint>
+              <height>40</height>
+              <width>100</width>
+              <x>250</x>
+              <y>378</y>
+            </constraint>
+            <sourceConnections/>
+            <targetConnections>
+              <net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel reference="../../.."/>
+            </targetConnections>
+            <children/>
+            <filterProperty/>
+            <name>Start a New Game</name>
+          </target>
+          <bendpoints/>
+        </net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel>
+      </sourceConnections>
+      <targetConnections/>
+      <children/>
+      <filterProperty/>
+      <name>Player 1</name>
+    </net.java.amateras.uml.usecasediagram.model.UsecaseActorModel>
+    <net.java.amateras.uml.usecasediagram.model.UsecaseActorModel reference="../net.java.amateras.uml.usecasediagram.model.UsecaseActorModel/sourceConnections/net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel[3]/target/targetConnections/net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel[2]/source"/>
+    <net.java.amateras.uml.usecasediagram.model.UsecaseActorModel reference="../net.java.amateras.uml.usecasediagram.model.UsecaseActorModel/sourceConnections/net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel[3]/target/targetConnections/net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel[3]/source"/>
+    <net.java.amateras.uml.usecasediagram.model.UsecaseActorModel reference="../net.java.amateras.uml.usecasediagram.model.UsecaseActorModel/sourceConnections/net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel/target/targetConnections/net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel[2]/source"/>
+    <net.java.amateras.uml.usecasediagram.model.UsecaseModel reference="../net.java.amateras.uml.usecasediagram.model.UsecaseActorModel/sourceConnections/net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel/target"/>
+    <net.java.amateras.uml.usecasediagram.model.UsecaseModel reference="../net.java.amateras.uml.usecasediagram.model.UsecaseActorModel/sourceConnections/net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel/target/targetConnections/net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel[2]/source/sourceConnections/net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel[2]/target"/>
+    <net.java.amateras.uml.usecasediagram.model.UsecaseModel reference="../net.java.amateras.uml.usecasediagram.model.UsecaseActorModel/sourceConnections/net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel[3]/target"/>
+    <net.java.amateras.uml.usecasediagram.model.UsecaseModel reference="../net.java.amateras.uml.usecasediagram.model.UsecaseActorModel/sourceConnections/net.java.amateras.uml.usecasediagram.model.UsecaseRelationModel[4]/target"/>
+    <net.java.amateras.uml.usecasediagram.model.SystemModel>
+      <backgroundColor reference="../../../backgroundColor"/>
+      <foregroundColor reference="../../../foregroundColor"/>
+      <showIcon>true</showIcon>
+      <parent class="net.java.amateras.uml.usecasediagram.model.UsecaseRootModel" reference="../../.."/>
+      <listeners serialization="custom">
+        <java.beans.PropertyChangeSupport>
+          <default>
+            <source class="net.java.amateras.uml.usecasediagram.model.SystemModel" reference="../../../.."/>
+            <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+          </default>
+          <null/>
+        </java.beans.PropertyChangeSupport>
+      </listeners>
+      <constraint>
+        <height>378</height>
+        <width>257</width>
+        <x>179</x>
+        <y>65</y>
+      </constraint>
+      <sourceConnections/>
+      <targetConnections/>
+      <children/>
+      <filterProperty/>
+      <name>MegaMek GameMenu System</name>
+    </net.java.amateras.uml.usecasediagram.model.SystemModel>
+  </children>
+  <filterProperty/>
+</net.java.amateras.uml.usecasediagram.model.UsecaseRootModel>
\ No newline at end of file