It depends what you define a camper as, in my opinion the best way to play control is to patrol around B flag, which theoretically is camping B flag, but there's nothing wrong with it. It's an overused word with no meaning really, if anything they're at a disadvantage to die next because everybody will know where you are, and boosting goes without saying but I doubt anybody would be able to boost their way up to a high k.d on this game.