I think it could be a fun new game mode, but it needs some changes. Add revives like in skirmish, make kills worth 2 points and a revive worth 1. Change the number of rounds to 3 so it can't go to sudden death unless you both tie points on the last round. Either remove power ammo completely or have it spawn once on the third round. Lastly I don't know if this goes without saying, but remove the buffs/debuffs associated with crimson days.