And also, what mutators? I didnt see any mutators...
Short answer: Gunreal is a TC that uses one hidden mutator internally. You shouldn't see it and it's always added when you start the game from menu.
Long answer: The mutator is required for Gunreal to work. Menu adds it automatically so you don't have to worry about it, but server admins running their own scripts/remote administration stuff should make sure that games are started with "
?mutator=GGame.gMutator" parameter. This may also affect mapvote scripts as they weren't tested yet.