Mass bans, lol. There is an anti-ban hack. Not to mention, aimbot, wallhack/esp, assault support streaks. Some of these tools are "No host" so you don't have to be the host for them to even work. The game can even be downloaded for free, including the dlc, and then played online. Mass fail.
Call of Duty: Ghosts Mods, Cheats, and Glitches - NextGenUpdate
I am only posting the link above because it should be known how inundated this game is with cheats. I have seen a few posts of people jumping on other users who are adamant there is very little cheating, if any lol (Well do some reading on the link above through the NextGenUpdates forums).
I am not a cheater, I just know how to use Google like anybody else who has access to the internet.