Yeah this one is tough. It has a lot of the vibes of AI video, but doesn't actually have some of the biggest tells that I can see. The robot design is very consistent. The environment too.
My guess would be some kind of mix of traditional CG and AI.
Edit, notice in the 3rd clip a few of the bots have the exact same reload animation nearly frame perfect match. I don't think I've seen AI do that before.