It's worth noting that the Beta is crossplay starting September 22, so players across PlayStation, Xbox, and PC can all play together. A full breakdown of the Call of Duty: Modern Warfare 2 Beta Event schedule can be found below.
Which platforms are Call of Duty: Modern Warfare II early access Beta codes available for? Call of Duty: Modern Warfare II early access Beta codes are available for PlayStation, Xbox, Battle PC and Steam PC .