I would request a game mode similar to Gears of War 2's Guardian. The mode is also similar to WolfTeam's Deathmatch. At the beginning of a match, a random player will be chosen as Leader[suggest other name titles], who will get +100 HP[again, totally open to other suggestions], all other players will keep respawning automatically if the Leader is still alive. Once the Leader dies, respawn for that team will be disabled, but players from that team can still fight on. A team wins, once all opposing players are dead.
I think that mode will be quite interesting and fun to play.
A retired Wolf Team Game Sage.