That's interesting part. I didn't use any cheat tool in Ghosts.

I only remember was after I finished the Extinction - Point of Contact Solo with two relics (and also first time and last time to attach Ark+Extended Mag on Chainsaw other than Awakening Map), I was reviewing the the leaderboard to compare the score. Suddenly received my Profile in Ghosts Online is banned on this Monday and unable to play online anymore.

A week ago, after play Nemesis DLC Map several time, I start played Extinction - Exodus (in order to get More Teeth to upgrade) and a few Squad Mode.

So I-have-no-idea why I have been banned.