If you are looking for a more general guide on how to change the language of the game here are some general steps:
: Community members on Steam have created "One-Click" English packs for regional versions. You can find detailed instructions and download links (hosted on external sites like Google Drive) via the Steam Community Guide . assassins creed brotherhood english language pack link
If the game is installed but stuck in another language (common with regional retail copies), you can force it to English via the Windows Registry: Press Win + R , type regedit , and hit Enter. If you are looking for a more general
Some "FitGirl" or "CorePack" style installations remove additional languages to reduce download size. assassins creed brotherhood english language pack link