Call of Duty: Modern Warfare Requires an Activision Account For Cross-Play

Call of Duty: Modern Warfare will feature cross-platform play on PC, Xbox One and PS4. In order to achieve this though, Activision have had to make Activision User IDs mandatory. Here

Call of Duty®: Modern Warfare® III - Pacote Multigeração

Modern Warfare - How To Add Activision Friends For Cross Platform! PS4 XBOX PC

How to Add Friends with Crossplay!

How to toggle crossplay in Call of Duty: Modern Warfare

How to Enable Crossplay in Warzone 2.0

HOW to ADD FRIENDS in Modern Warfare! (MW Crossplay Tutorial)

FYI For those trying to add CROSS-PLATFORM friendsYou guys all need to be sharing your Activision NAME / ID (the one with numbers after it) for crossplay. (YOUR NORMAL PSN/XBOX GAMERTAGS WILL

Call of Duty Modern Warfare Cross-Platform Feels Very Smooth, 20v20 Takes Places On Larger Maps - Report

Call of Duty: Modern Warfare 3 beta weekend 2 is live for Xbox and PC