Many players discovered that purchasing a Russian (CIS region) key for MW3 was significantly cheaper than buying a global copy. However, those copies often installed with Russian text and voice by default. Fortunately, even for Russian Steam keys, the language can be changed using the exact same Steam method described above. Go to your Steam library → right‑click MW3 → Properties → Language → select English. Steam will then download the English language pack automatically.
: Changing the language=... line to language=english in the configs.user file found in the game folders. Call Of Duty Modern Warfare 3 English Language Pack Free
Instead of downloading random executables from the internet (which can contain malware), try these safe methods first: Many players discovered that purchasing a Russian (CIS
Navigate to Settings > Account & Network > Language to change language settings within the game interface itself. Go to your Steam library → right‑click MW3
: Some physical copies are region-locked to specific languages (like Polish or Italian) and may not support the English pack download. In these cases, changing your system console language
Right-click the game in your Library , select Properties , go to the General tab, and choose English from the language dropdown. Steam will then automatically download the necessary files.