Warning: Many players reported that by 2021, the PS3 store had delisted specific MW3 language packs. If you cannot find it, proceed to Method 3.
Change that specific word to read Language = english or Language = en . Save and close the text document. Final Result
Some physical disc copies are region-locked to specific languages. If your version lacks English entirely, you may need to download the free Call of Duty: Warzone client from an English-region store to access those assets. System Requirements for Modern Warfare 3 (2023)
For certain versions, you can open the steam_settings folder and edit configs.user (or a similar .ini file), changing the line language=russian (or other) to language=english .