There are some cheaters. Not the (better skill-)"Cheaters", the real ones . I have seen some with aimbot. Wallhack not yet.
But I had more cheaters in other CoDs.
And @Rpg37: you can report them ingame: on PC press F2 (social) > last players > look for the cheater and report him as cheater. Easier than ever before!
Dude named [removed by moderator] who I ran into, he was using dumb bots. He would play with them , theyd be on the other team, run to an open part of the map, wouldn't bother to aim at you or anyone else, and would essentially fuel kill streaks