Hi: You’re on the wrong forum.
This forum is for support on issues of a technical nature (installation, crashes, connection, etc…) on Blizzard’s Legacy Games — old games such as Diablo II (2000) and the games in the Blizzard Arcade Collection.
For Call of Duty, Blizzard support is limited to installation or updates… for details, see Having Problems with Call of Duty? Read this first! .
For any issues with launch, operation (connection, performance, crashes, etc.) or optimization of a Call of Duty game, you need to contact Activison Support