EA released the first in-game gameplay footage in a trailer for the upcoming Battlefield 3. The trailer shows a first glimpse of actual in-game footage from Battlefield 3 as a U.S Marine squad engages hostile forces in Iraqi Kurdistan. Battlefield 3 is slated to be released on December 31, 2011. You can pre-order Battlefield 3 in Limited Edition to get the Back to Karkand multiplayer expansion pack for free which include four legendary maps from Batlefield 2. Check out the gameplay trailer after the break.