I'm trying to figure out if the gray one on the bottom is the Tie Interceptor or Vader's? I think Vader's is darker gray, but I'm not sure. Based on the other toys I had in the box form the Garage Sale, I'm guessing it's the interceptor. The Battle Damage Tie, Y-Wing, and Scout Walker point to ROTJ vehicles, but I'm wonder how you tell for certain. Thanks.