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 21st, 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.
