99.9999% of spawn campers die and respawn at the same place. Eventually you run out of bombs or a noob kills you for being so noob-like yourself. To break a camp it takes numbers and thats the quickest way. I also hear there is a way to spawn in with delay so you can turn your turret and fire before they even see you. I think this is more of a delay issue with game sounds or something but its a persistant rumor.