Activision has released a trailer for Final Assault , the latest downloadable content for Call of Duty: Modern Warfare 3 . The package will contain three new maps for multiplayer mode: Gulch , Off Shore and Boardwalk . Elite Premium users can download the DLC starting September 5, and the next day everyone else can buy for 1200 MSP the Content Collection # 4 which includes these three maps and two already previously outputs for Premium members, Parish and Decommission . We leave you to the video.