User:Benzarr410/Last Man (or Tank) Standing

I think a good idea for a game mode would be something like a last tank standing or hunger games, or something to that effect. It would go like this, at least in my vision of it. So what do you think? This has potential. Seconded! Maybe. I think it might work. No, this doesn't seem like a good idea.
 * Everyone starts in the center, facing each other (At level 1, of course)
 * After a 3...2...1...Go! The server is closed to new participants, (however, if a spectator mode ever gets implemented, new joiners could be spectators.) and there's a 60-90 second grace/invincibility period
 * If the match goes longer than some time limit, the arena starts getting smaller, a la Tag mode