Why? CoD is not a do-or-die franchise. CoD is not required for market success. Franchises change owner all the time. If MS were to buy CoD, GTA and FIFA in one big sweep, I'd understand anti-trust mechanics to kick in. But only CoD?
Yes, because the videogames industry is already one of the most "monopolised" industries on Earth. There are 3 console platforms around the entire world or 4 distribution platforms if you include Steam.
Any platform that buys a big supplier is going to be treading anti-trust lines, let alone the biggest publisher in video game history, and offering more money than every platform has ever spent on mergers combined, and having control over your biggest competitor's (Sony) number one supplied IP (COD).
So apparently the foreclosure goalposts
Foreclosure of multi-game sub services is something the CMA mentioned in Phase 1, EU commission has already mentioned the market of game sub services under investigation and the FTC is likely to mention as well.
Any asset type can be deemed an essential input.