I still play Black Ops II a few times a month, usually on a random night when I'm drunk at 1 in the morning. As old as that game is, there's still a shit ton of people that play online. BO2 was always my favorite and is still fun to this day. I still get a kick out of talking shit to little bitch ass kids, campers, quick scopers, drop shot pusscakes, and so on. Yeah I'm clearly mature
All the recent COD games have sucked IMO, but I'll probably give WW2 a shot.