EA has released the first trailer dedicated to the first expansion pack for Battlefield 3 called Back to Karkand showing an overview of the locations that will be included in the game including the second famosci scenarios Battlefield, Strike At Karkand, Sharqi Peninsular, Gulf of Oman and Island of Wake. The DLC is expected on the Marketplace in December and will be free for holders of the Limited Edition and pay for those who have the standard version.

Battlefield 3 - Back to Karkand Gameplay Premiere Trailer | HD version