exclusive force fire on husks and bridges

OpenRA.Game/Traits/Target.cs

@@ -85,6 +85,11 @@ namespace OpenRA.Traits
 			return true;
 		}
 
+		public bool RequiresForceFire
+		{
+			get { return targetable != null && targetable.RequiresForceFire; }
+		}
+
 		// Representative position - see Positions for the full set of targetable positions.
 		public WPos CenterPosition
 		{

OpenRA.Game/Traits/TraitsInterfaces.cs

@@ -233,6 +233,7 @@ namespace OpenRA.Traits
 		string[] TargetTypes { get; }
 		IEnumerable<WPos> TargetablePositions(Actor self);
 		bool TargetableBy(Actor self, Actor byActor);
+		bool RequiresForceFire { get; }
 	}
 
 	public interface INotifyStanceChanged