Call Of Duty 4 Modern Warfare Update 21.1 [patched] -

: Removed vehicles like the IAV to improve balance and lowered Juggernaut health in this specific mode. Weapon Balancing

Are you specifically trying to install the for the original game, or are you having trouble with a recent update for a newer Call of Duty title ? How to update version cod4x call of duty 4 modern warfare update 21.1

Because the auto-update feature is non-functional for older versions, players must perform a manual installation: : Removed vehicles like the IAV to improve