Call of Duty is finally arriving for cloud gamers, with three of the latest titles, including Warzone, launching onto GeForce Now. With Microsoft's acquisition of Activision complete, more of the latter publisher's titles have been making their way onto cloud platforms.
The Call of Duty games are on the Gamecube, Xbox, PlayStation, PlayStation 2, PlayStation 3, PlayStation Vita, PlayStation 4, PlayStation 5, Xbox 360, Xbox One, Xbox Series X, Xbox Series S, PC, Nintendo Wii, Wii U, and the Nintendo DS.
Call of Duty: Modern Warfare II does support crossplay on PlayStation 4, PS5, Xbox One, Xbox Series X, and PC (via Steam and Battle). This means regardless of your platform, you'll be able to play with users on other systems or devices.