You cannot just rename a Russian file to "English." The game engine is hard-coded to look for specific hash values. You need the genuine assets.
Search for "MW3 English Language Pack" specifically for the version of the repack you installed. call of duty modern warfare 3 english language pack repack
: Use the "Manage Game Content" option on the game's home screen icon to download specific English language data packs. You cannot just rename a Russian file to "English
With the right English pack, Modern Warfare 3 transforms from a confusing, foreign shooter into the gripping, cinematic masterpiece it was always meant to be. Now, lock and load, soldier. The language barrier has been eliminated. foreign shooter into the gripping
These custom clients for multiplayer often have built-in language selectors. They ignore the region lock of your repack.