Kinda silly to complain about camping when you play any CoD game on consoles - unless you've never played any of them, you should already know what you're signing up for. Camping wins in CoD. The game promotes it. It's not an exploit or game-breaking mechanic. Expect to see it. Be prepared to occasionally do it if you're desperate to win.
My definition of cheap is somewhat along the lines of exploiting. DICE still hasn't fixed blowing up M-COM stations in BC2. They consider it a legit tactic. Does that make it ok? It's so horribly easy to win doing it that rage-quitters arn't uncommon when you're constantly doing it, and I honestly don't blame them for quitting matches.
I can't really think of a "cheap" tactic that's in most of today's console shooters.
