Call of Duty: Modern Warfare beta players have reported that the they?re able to cross-save their progress across all platforms. So far, Activision has only officially announced cross-play support but has yet to confirm that Modern Warfare will support cross-progression at launch.
According to Charlie INTEL, Activision previously said that it was ?looking into? cross-progression saves, however, players who have their PlayStation Network, Xbox Live, and Battle.net accounts linked to the same Call of Duty account can see their beta progression saved across all platforms.

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