wired up Explodes again; categories != targettypes

OpenRA.Game/Traits/Explodes.cs

@@ -32,12 +32,7 @@ namespace OpenRA.Traits
 			{
 				var unit = self.traits.GetOrDefault<Unit>();
 				var altitude = unit != null ? unit.Altitude : 0;
-
-//				self.World.AddFrameEndTask(
-//					w => w.Add(new Bullet(
-//						"UnitExplode", e.Attacker.Owner, e.Attacker,
-//						self.CenterLocation.ToInt2(), self.CenterLocation.ToInt2(),
-//						altitude, altitude)));
+				Combat.DoExplosion(e.Attacker, "UnitExplode", self.CenterLocation.ToInt2(), altitude);
 			}
 		}
 	}