I do enjoy reading how you'd deal with a camper who's intelligent enough to know, anticipate, and counter all of your strats. Personally, I just camp in return 
There is, however, an inconsistency in this thread that none of you seem to mention or bring up.
If you get killed by a camper and you use one of these "awesome, clever tactics" to kill them in your next life, then that camper went 1-1 against you, right? His kd didnt benefit; its just a 1.00 in that situation.
What most of you dont seem to acknowledge is that most campers, if theyre camping right, have pretty awesome kds (Look up the GT rufiodacamper if you dont believe me, he has a kd around 5.00-6.00). Therefore, they must be killing SOMEONE more than being killed by that person.
Thus two things are possible here:
1. Everyone in this thread is some sort of godly camper-killer who only dies once to them 99% of the time and is uber pro mlg at beating expert campers with their tactics, or
2. People in this thread are talking out of their ass and in reality get **** on by *****-ass campers multiple times before they finally get lucky, rage quit, avoid them, or never see them again for the rest of the match because they're too busy being spawn killed by the camper's huey/dogs.
Wonder which is more likely.
PS. Why do you all think I run a class with flak jacket and tactical mask? It's either that or ghost/second chance.