Interesting, I hope there's a huge backlash over this (and I suspect there will be).

Steam has a rule saying you have to disclose if you use generative AI to create assets in games. The Call of Duty page has been updated by the publisher to include this tag.

People have suspected it for a few months, as loading screens started to have artwork where characters had multiple fingers etc, and map assets started to look weird.

https://www.eurogamer.net/activision-admits-call-of-duty-includes-generative-ai