While there isn't a single "English language file" in a literal sense for academic study, several high-quality papers analyze the Call of Duty series, including Advanced Warfare , from linguistic and technical localization perspectives. Academic Research on Call of Duty Localization
When searching for a , be wary of "Auto-Installers" or .exe files. Authentic language packs should only consist of .pak , .ff , and .shd files located within a folder. Never run an executable from an untrusted source to change a game language. call of duty advanced warfare english language file link
Are you running a version or a digital Steam version? Guide :: Changing the language to English - Steam Community While there isn't a single "English language file"