fix TSLA firing in low power or disabled

OpenRA.Game/Traits/Attack/AttackBase.cs

@@ -71,6 +71,7 @@ namespace OpenRA.Traits
 		{
 			if (target == null) return false;
 			if ((primaryFireDelay > 0) && (secondaryFireDelay > 0)) return false;
+			if (self.traits.WithInterface<IDisable>().Any(d => d.Disabled)) return false;
 
 			return true;
 		}