Sometimes a patch can corrupt specific audio files, requiring a fresh install of the language assets.
Find the in the list, check the box, and select Save changes . How to Install on PC (Battle.net & Steam) Call Of Duty Modern Warfare 3 English Language Pack
Under the "General Content" or "Language" section, click . Check English and click confirm. Right-click Modern Warfare 3 in your Library. Select Properties . Navigate to the Language tab. Sometimes a patch can corrupt specific audio files,