I recall from the interview when the UK blocked it the creator said “you do nothing in it you don’t do it Black Ops. But only mine is terrorism, it’s purely political.” (paraphrased)

I’ll confess that I’ve not played either of them, so I don’t know how true that holds. But I do know that a lot of those console shooters are very political and the world seems fine with it when it’s a US avatar shooting up Arabs.