If you own Battlefield 3™ Premium, DO NOT purchase this content here as you will be charged again.Battlefield 3™: Back to Karkand is one of five expansion packs included in Battlefield 3 Premium, together with a host of exclusive in-game items, early access, and more. You might want to consider purchasing Battlefield 3 Premium instead, here or in the Battlefield 3 in-game store.Battlefield 3: Back to Karkand is a massive themed expansion pack featuring four of the most loved maps from Battlefield 2, boldly reimagined for Battlefield 3 with the power and destruction of the Frostbite 2 engine. It also gives you classic weapons and vehicles from Battlefield 2, unique dog tags, and all-new Assignments.