Mr. Android INeedBots is the guy who did the bot warfare mod on iw4x. In February 2020 he was working on bo1 bots. This guy does a great job ! You should try to get in touch with him !
(His member page :
https://www.moddb.com/members/ineedbots
His mod :
https://www.moddb.com/members/ineedbots/downloads)