Update Install Scripts

worlds/empty_custom.world

@@ -15,6 +15,21 @@
       <uri>model://ground_plane</uri>
     </include>
     
+    <!-- UAV - Iris Quadcopter with Cameras -->
+    <include>
+      <uri>model://iris_with_camera</uri>
+      <name>uav</name>
+      <pose>0 0 0.1 0 0 0</pose>
+    </include>
+    
+    <!-- UGV - Ground Vehicle -->
+    <include>
+      <uri>model://custom_ugv</uri>
+      <name>ugv</name>
+      <pose>2 2 0.1 0 0 0</pose>
+    </include>
+    
+    <!-- Visual Markers for GPS-Denied Navigation -->
     <model name="visual_markers">
       <static>true</static>
       <link name="marker_0">
@@ -55,6 +70,7 @@
       </link>
     </model>
     
+    <!-- Origin Marker (Yellow) -->
     <model name="origin_marker">
       <static>true</static>
       <pose>0 0 0.01 0 0 0</pose>
@@ -74,6 +90,7 @@
       </link>
     </model>
     
+    <!-- Spherical coordinates for geofencing reference -->
     <spherical_coordinates>
       <surface_model>EARTH_WGS84</surface_model>
       <latitude_deg>47.397742</latitude_deg>