I know what you mean, just the past 2 days I have run into about 3 invisiblity hackers. I reported the one, and cant figure out how to report the other 2 because they left as soon as the game ended and I couldnt get to it in time. The guy I reported got about 50/0, and I watched the game ending killcam, and I was sitting right by where he shot the last person and I didnt see anyone otherwise I would have shot at him.
Seriously, these people need to learn some respect for the game. I wonder if their parents taught them to be cheaters in life. Cant even enjoy a game anymore because of cheaters/hackers. Some of us like to play the game to have fun, not try to be a douche and get your k/d ratio to be the best or whatever you people want out of cheating.
Something seriously needs to be done. I know nothing will but I can have wishful thinking lol.