You can force the game to recognize a different language by editing your computer's registry values. Press Start , type , and press Enter.
If the standard method doesn’t work, you may need to manually swap files. The English language data is typically stored in a folder named within the game directory. Locate the folder Steam\steamapps\common\Call of Duty Ghosts The "Main" and "Zone" Folders : Language packs usually consist of files located in the directories. Download Depot : Advanced users can use the SteamDB Depot
If your version is locked to a specific language (e.g., Polish or Russian) and the Language tab is missing in Steam, you may need to manually swap files.
to find and download the English pack if it isn't already installed. Change Russian to English: Call of Duty - Black Ops