Download For Free Today\n\n Play the CALL OF DUTY you know and love on the go on your mobile device. With multiplayer modes such as Team Deathmatch, Domination, and Kill-Confirmed on iconic maps such as Shipment, Raid, and Standoff, CALL OF DUTY: MOBILE has it all!

The problem can be that you don't have the game's latest update. If you're on Android, then visit the Google Play Store, search for the game, and update the app. The same goes for iOS.