A poster detailing the first expansion pack for Battlefield 3 has been revealed today by an unknown source. The poster reveals the Back To Karkand expansion pack will be available in the limited edition at no extra charge and will feature 4 “legendary maps” from Battlefield 2 which will be “boldly re-imaged with Frostbite 2 physics.” What these maps are is still a mystery, but the other interesting detail here is a new Frostbite 2 engine. As most of you may, or should, know, Frostbite is the engine used in Bad Company 2 that contains destructible environments, most notably. A revision of this engine means that we should be getting an even better destructible environment with Battlefield 3. Also with the package there will be new achievements and the classic Battlefield 2 weapons and vehicles. For those that don’t pre-order the limited edition, the Back To Karkand expansion will be available to purchase around 1 month after the game’s release. The poster only shows the PC box art but it will be coming to other platforms too. It is below for your perusal.[/p] Source A bit sudden perhaps, but still a good incentive to buy the limited edition, especially considering that EA usually put them at the same RRP.