Did you buy the game as a or a physical disc ?
: Some physical copies of the game are region-locked to specific languages (e.g., copies from certain European or Asian territories may not include all Western languages). English Language Pack For Call Of Duty Modern Warfare 3
Click Confirm and then Start Update . The launcher will download the missing English audio and text assets. How to Install the English Pack on PlayStation (PS4 & PS5) Did you buy the game as a or a physical disc