STFU. It's a valid tactic. Yelling 'effing camper', or 'All you can do is camp' or 'campers suck', is more a reaction to getting suckered into a campers trap. Out on a real battlefield people don't run around like headless chickens firing randomly. THAT is the problem, not camping. Play a game in hardcore mode and see how many headless chickens you get. No where near as many, unless they enjoy being cannon fodder.