Windows Store 'CoD' buyers can't play with Steam friends
 

Call of Duty: Infinite Warfare and Modern Warfare Remastered have come to the Windows 10 Store, but you may want to think twice about buying the games there. According to Activision, those versions don't support console cross-play, and won't even wor...

https://www.engadget.com/2016/11/04/...-restrictions/