Can villians goto the normal CoH zones, like atlas, steel canyon, kings row... ect? Cuz if they can i wouldnt get why they cant team up due to you cant really lead people into traps unless its a PvP zone, in which atlas and those are not. the only thing i can think of that would mess things up is the failing a mission on purpose, but why would you want to do that, completing it helps both sides not just the heroes or the villians. but then again i guess there are those few that are like that.