see i camp behind a riot shield in search and team death match and i will just quickly pop my head up kill a guy then pop back down and wait for him to come back and try again they say im cheating since they only see my head and i kill them so i was wondring cani get banned for it
That's how you're supposed to use an Assault Shield. Just ignore them.
No, and if you do, they may as well ban the entire CoD community as EVERYONE does it, whether they admit/know it or not.
It's not really a glitch so No. It has been a part of COD for a while, I don't remember it much in COD4 but it makes sense to get behind cover!
I do think they should address it though as when players are doing it all you can see is the top half of their head, which is difficult to hit, they can see your whole body!
But as Gerbera said we all do it