Treyarch has been good about removing the mods that have plagued Call of Duty with their Black Ops series, so there aren't really all that many ways to cheat on Black Ops II. However, there is one thing that bothers me to no end, and that is the exploitation of lag compensation. Lag comp in general is an awful idea, and those with a poor connection should have to pay the piper or get a better service in my view. Seriously, it's so bad in Black Ops II that being the victor in a gunfight just boils down to being on the better end of lag comp, but I won't go off on that tangent here. Concerning the exploitation, people with decent connections actually hinder their bandwidth on purpose to get on the good end of lag comp. It isn't illegal, although it's something I frown upon and have frustrations with every time I play. Still, it's Treyarch's fault for implementing lag comp (honestly, did anyone even like it in MW 3?) and I will not be buying any future Call of Duty games that include it.