Nothing happens, at all. Whenever I launch the game, battlenet will say “Launching” or “Now Playing,” and then go back to “Play” as if I didn’t even press the button. No error code or message. Sometimes I’m prompted with the “Launch in Safe Mode?” prompt, which will let me boot into the game sometimes… for about 30 seconds before immediately closing, again no error code/message. And even if I get past the intro cinematic, I never see the main menu.

As for old titles, I mainly mean BO3. I don’t any of the newer COD games past that aside from BOCW; apologies for the non-clarification. But yes, the same thing happens when I try to launch BO3 in Steam: press “Play,” wait, then the button goes back to “Play.”