Content Pack 4 is the fourth Content Pack for Call of Duty: Modern Warfare 3, and was released on April 10 for ELITE premium members on Xbox Live, and May 10 for PlayStation 3. It contains the maps Sanctuary and Foundation.

Content Pack 2 is the second Content Pack for Call of Duty: Modern Warfare 3, which was released on February 21^st, 2012 for Xbox 360 users who subscribed for Call of Duty ELITE premium membership. It contains only one multiplayer map: Overwatch. The pack was made available to all Xbox 360 players on March 20, 2012.