There are three primary scenarios where this download becomes necessary:
Highlight and press the Menu button (three lines). Select Manage game and add-ons . Click on the game tile at the top of the screen. Choose Manage installation on [Internal/External Drive] . Call Of Duty Modern Warfare 3 English Language Pack
If you have installed the pack but the game is still not in English, follow these steps: There are three primary scenarios where this download
Xbox uses a "Manage Game" system that bundles all DLC and language files in one menu. Open . Choose Manage installation on [Internal/External Drive]
Language packs often require a "cold boot" of the game to initialize the new audio pointers.
Find the in the list, check the box, and select Save changes . How to Install on PC (Battle.net & Steam)
Players often delete language packs they don't use to save space; if you accidentally deleted the English files, you’ll need to re-fetch them. How to Install on PlayStation (PS4/PS5)