N1ghttyBruh if you need support for MW3 then you should post in MW3 support instead. To answer your question there is a button in game that does that. Then afaik you have to play a game for it to save.
N1ghttyBruh You either have to backup steam_api.dll and put it in the BO2 folder again when you wanna play using Steam (to access campaign) or repair your game in Steam every time you wanna play on Steam again. You could also either have 2 separate BO2 installations or get a small batch script to move the file accordingly. I could create that script for you if you want.
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