Mmh, I will try to join if I can.
I think everyone will try to disguise to avoid being focused during LMS fights
They seem a little too harsh, how many people do you expect ?
Maybe for another type of tournament, it could be interesting to restrict the choice of armors (light set, medium set, heavy set), use only closed helms (so you can't see the face) and force all players to use the same banner, because it is shown on shields (via rules or server option, I don't know if it's possible with deathmatch), so reducing the likelyhood of two people cooperating, even with voice chat and distinctive weapons, everyone having the same armor makes it more confuse (in a good way).