i get a mesage 1 or more of your drivers are missing when i try to play call of duty how do i insall the latest drivers

Firstly, run Windows Update and see if it finds any new drivers for your PC. If it does, let it download and automatically install them. Then reboot and see if the problem persists.

If it does, try going to http://www.microsoft.com/directx and download and install the latest version of DirectX.

If you still have the problem after that, we'll need to know what version of Windows you're running to be able to help further.