: Files like localized_english_iw00.iwd through localized_english_iw05.iwd are placed in the \steamapps\common\Call of Duty Modern Warfare 3\main directory.
The most reliable way to change your language is through the Steam Client : modern warfare 3 2011 english language pack
After replacing files, you can use Steam's Verify integrity of game files option under the "Installed Files" tab to ensure no critical components are missing, though this may occasionally revert manual changes. : Files like localized_english_iw00
Call of Duty: Modern Warfare 3 is a first-person shooter video game developed by Infinity Ward and Sledgehammer Games, and published by Activision. Released in 2011, it is the third installment in the Modern Warfare series and a sequel to Call of Duty: Modern Warfare 2. modern warfare 3 2011 english language pack