diff --git a/Subsurface/Content/Items/Electricity/signalitems.xml b/Subsurface/Content/Items/Electricity/signalitems.xml
index 8128c1d74..d4ebf5678 100644
--- a/Subsurface/Content/Items/Electricity/signalitems.xml
+++ b/Subsurface/Content/Items/Electricity/signalitems.xml
@@ -305,6 +305,7 @@
       <requireditem name="Screwdriver,Wire" type="Equipped"/>
       <input name="toggle"/>
       <input name="set_state"/>
+      <input name="set_color"/>
     </ConnectionPanel>
 
   </Item>
diff --git a/Subsurface/Content/Items/Tools/tools.xml b/Subsurface/Content/Items/Tools/tools.xml
index 560e8c436..be03cf31b 100644
--- a/Subsurface/Content/Items/Tools/tools.xml
+++ b/Subsurface/Content/Items/Tools/tools.xml
@@ -43,7 +43,7 @@
 
       <StatusEffect type="OnFailure" target="Contained" targetnames="Welding Fuel Tank,Oxygen Tank" Condition="-3.0"/>
 
-      <LightComponent color="1.0,0.9,0.7,1.0" Flicker="0.5">
+      <LightComponent LightColor="1.0,0.9,0.7,1.0" Flicker="0.5">
         <sprite texture="Content/Items/Electricity/lightsprite.png" origin="0.5,0.5"/>
       </LightComponent>
     </RepairTool>
@@ -88,7 +88,7 @@
 
       <StatusEffect type="OnFailure" target="Contained" targetnames="Welding Fuel Tank,Oxygen Tank" Condition="-3.0"/>
 
-      <LightComponent color="0.1,0.8,1.0,1.0" Flicker="0.5">
+      <LightComponent LightColor="0.8,0.7,1.0,1.0" Flicker="0.5">
         <sprite texture="Content/Items/Electricity/lightsprite.png" origin="0.5,0.5"/>
       </LightComponent>
     </RepairTool>
diff --git a/Subsurface/Source/Items/Components/Projectile.cs b/Subsurface/Source/Items/Components/Projectile.cs
index 4e271594e..fbe4b69dd 100644
--- a/Subsurface/Source/Items/Components/Projectile.cs
+++ b/Subsurface/Source/Items/Components/Projectile.cs
@@ -149,6 +149,16 @@ namespace Barotrauma.Items.Components
             AttackResult attackResult = new AttackResult(0.0f, 0.0f);
             if (attack != null)
             {
+                var submarine = f2.Body.UserData as Submarine;
+                if (submarine != null)
+                {
+                    item.Move(-submarine.Position);
+                    item.Submarine = submarine;
+                    item.body.Submarine = submarine;
+                    item.FindHull();
+                    return false;
+                }
+
                 Limb limb;
                 Structure structure;
                 if ((limb = (f2.Body.UserData as Limb)) != null)
diff --git a/Subsurface/Source/Items/Components/Signal/LightComponent.cs b/Subsurface/Source/Items/Components/Signal/LightComponent.cs
index 0b1c251a8..7ad1ed8f0 100644
--- a/Subsurface/Source/Items/Components/Signal/LightComponent.cs
+++ b/Subsurface/Source/Items/Components/Signal/LightComponent.cs
@@ -92,10 +92,8 @@ namespace Barotrauma.Items.Components
         public override void Update(float deltaTime, Camera cam)
         {
             base.Update(deltaTime, cam);
-            if (item.CurrentHull != null)
-            {
-                light.Submarine = item.CurrentHull.Submarine;
-            }            
+           
+            light.Submarine = (item.CurrentHull == null) ? null : item.CurrentHull.Submarine;
             
             if (item.Container != null)
             {
@@ -105,7 +103,13 @@ namespace Barotrauma.Items.Components
 
             if (item.body != null)
             {
-                light.Position = item.WorldPosition;
+                light.Position = item.Position;
+
+                if (!item.body.Enabled)
+                {
+                    light.Color = Color.Transparent;
+                    return;
+                }
             }
             
             if (powerConsumption == 0.0f)
diff --git a/Subsurface/Source/Map/SubmarineBody.cs b/Subsurface/Source/Map/SubmarineBody.cs
index 9fb1fcbb9..7246e820e 100644
--- a/Subsurface/Source/Map/SubmarineBody.cs
+++ b/Subsurface/Source/Map/SubmarineBody.cs
@@ -150,7 +150,7 @@ namespace Barotrauma
 
             body.BodyType = BodyType.Dynamic;
             body.CollisionCategories = Physics.CollisionMisc | Physics.CollisionWall;
-            body.CollidesWith = Physics.CollisionLevel | Physics.CollisionCharacter;
+            body.CollidesWith = Physics.CollisionLevel | Physics.CollisionCharacter | Physics.CollisionProjectile;
             body.Restitution = Restitution;
             body.Friction = Friction;
             body.FixedRotation = true;