Let’s be clear: unless you own the original English version. However, if you legally own a copy of Modern Warfare 3 (any region), most countries allow downloading a language pack as a "format shift" or translation patch.
For console versions, the game often adopts the system language: PlayStation Manage Game Content and check for available Language Data packs to download. : Change your Console Region/Language to English in the system settings and restart the game. call of duty modern warfare 3 2011 english language pack
If your installation defaulted to a foreign language without an in-game option to switch, manually applying the English language pack files is the only viable workaround to fix: Let’s be clear: unless you own the original