This makes me want a end of the world-like event for crpg with players being zombies and a few people being the surviving humans with a hunting xbow and a limited amount of bolts.
In Napoleonic Wars there is a kind of "manual" gamemode that we call "Zombie".
You use a team deathmatch / siege / whatever gamemode that have infinite spawn.
1 or 2 or max 3 guys begin in the "zombie team" (can be whatever side): they have to use ONLY melee weapons on foot, and dont know how to open doors, or deploy equipment.
ALL the rest goes into the other team, and can camp like bitches, use ranged weapons, close doors and shit like that.
Fact is: when a zombie kill a human, the player killed go to zombie team.
Human team always start strong and slowly gets overwhelmed by new players becoming zombies :mrgreen:
When everyone obey the rules it can be quite funny :D Have to use teamspeak to coordinate shit and enforce them rules though or it can get chaotic fast.
Would be super fun if a gamemode was created to enforce such rules without human supervising..