During a livestream today, Call of Duty production manager Paul Haile outlined the details of Call of Duty's first foray into full cross-platform play in Call of Duty: Modern Warfare.
"The industry is hitting a tipping point where we really shouldn't be restricting people from playing with their friends because of platform choices," Haile said during a livestream offering details on the feature.
Modern Warfare will allow players across PS4, Xbox, and PC to play with one another in all game modes, so long as they have a Call of Duty account. This functionality will work both for parties of friends who have invited one another, as well as random match-ups.

https://www.gamesindustry.biz/articl...y-in-all-modes