The Battlefield Blog has posted an article with a whole bunch of details regarding the Back to Karkand DLC coming to Battlefield 3. In goes in to detail about the design idea for the expansion pack. It of course is free to anyone that pre-ordered the game but will cost you $14.99 or 1200 Microsoft Points. For some reason PlayStation 3 players will have exclusive 1 week early access to Back to Karkand expansion when it comes out this December.
Now only with the Back to Karkand Expansion have new maps but it will also include five new dog tags, five new achievements/trophies, three new vehicles, 10 classic Battlefield weapons as well as a new persistence system that lets players complete assignments to earn their rewards. Check out the full article right here.