Locate the sound files for your current language (e.g., sound_russian.fat and .dat ) and the English ones ( sound_english.fat and .dat ).
To get the English language pack for Far Cry 3 , you typically do not need to download a separate "pack" from third-party sites; the files are usually included in the installation or can be enabled through official clients and system settings . Official Methods for Steam and Ubisoft Connect English Language Pack For Far Cry 3
If you have the audio files but the game refuses to use them, some players find success by renaming the files of the language currently in use. The English Language Pack for Far Cry 3
Open it and change the language entry from russian (or other) to english or en-US . Lost in Translation