If you have a version of the game locked to a different language (like Russian), players often fix this by renaming their preferred language files (e.g., sound_french.dat/.fat ) to sound_english.dat/.fat so the game engine loads them by default.
Let me know so I can give you more tailored steps!
Always create a copy of your original .fat and .dat files before renaming or overwriting them to avoid game crashes or "file check" failures.
For a hands-on look at how to unpack and repack Far Cry 3 data files for modding, check out this tutorial: (OLD)Far Cry 3 Mod/Pack Tutorial teknogeek1300 YouTube• Dec 11, 2012
