When my fireteam gets to the ledge, I always wait to see which method they want to use. However.... Let me use your post to once again bad mouth matchmaking. You by right are entitled to play how you want to play. If you want snipe adds off the ledge that's your business, because you're not accountable to anyone, and that accountability is what a fireteam needs for tougher battles. It ensures that when you go to play the more difficult game modes, you know that you must communicate with the other team members or face getting kick or abandoned.