I've created this discussion so people can 1) suggest new mutators and 2) see what mutators have or will be added. Particularly because as of present, the mutators menu is not behaving properly, so it's important people still know what will be added and that their feedback has been noticed in meantime.

From B7 the mutators menu will be getting more changes - there will now be a dedicated section for all of the toggleable (on/off) mutators. The list has been modified to represent this.

Key:
S = Suggested, not yet started
U = WIP, unfinished
R = Available in current TFC version
N = Available in next TFC version

Mutators Menu ---------------------------------------------------------
R Start Round = [ 1, 5, 10, 15, 20 ]
N Maximum Spawned Zombies = [ 16, 24, 36, 55 ]
U Weapon Selection = [ Comprehensive, Suitable, Classic ]
U Gamemode = [ Classic, Gun Game ]

Toggle Mutators ---------------------------------------------------------
R Perk Limit = [ Off / On ]
N Special Rounds = [ Off / On ]
U Magic = [ Off / On ]
S Black Ops Features = [Off / On ]
S Hardcore Mode = [ Off / On ]
S Player-specific Starting Weapon = [ Off / On ]
U Zombie Counter = [ Off / On ]
R Hitmarkers = [ Off / On ] Known issues
U Change PaP camo = [ Off / On ]
U Nostalgia Mode = [ Off / On ]