https://wccftech.com/call-of-duty-modern-warfare-cross-platform-play/

The Call of Duty Modern Warfare multiplayer has yet to be revealed, but details on the matter have already started emerging online a few hours ago thanks to a user who is attending the multiplayer reveal event.

According to Reddit user PotatoA1mz, the Call of Duty Modern Warfare cross-platform play between PC, PlayStation 4 and Xbox One feels very smooth. He also revealed that the 20v20 mode was played on special larger maps.