2016's most downvoted YouTube video materialized into what I think is one of the best CoD campaigns ever made! Infinite Warfare's campaign is not only the logical conclusion not just to the series' increasing sci-fi lean, but also to Infinity Ward's bittersweet tales of comradere leaning towards the bitter end of the spectrum. This isn't just as mean as Modern Warfare 2's, it's somehow even crueler and I think it's really fascinating; E3N MY BELOVED!!!
I also really like its focus on more quieter moments, from the little hub you have between missions to some missions sometimes starting with no combat at all, akin to All Ghilled Up. It's nice to see a sci-fi game with a comical amount of money thrown at it.
I want as many CoD campaigns as possible on GoG, obviously, but if for some reason I had to make the call on which one gets here first.... it'd be this one. Yes, even above any game in the original MW trilogy. None of them have E3N.