Battlefield 3's Back to Karkand expansion pack is live in Europe and hits the rest of the world this afternoon, if you own the Playstation 3. PC and Xbox 360 owners will need to wait until Dec. 13.

The worldwide roll-out, Electronic Arts warns, is experiencing some minor issues:

"Please use the Quick Match filter settings to pick the Back to Karkand map and mode you want to play. Going through the server browser right now will match you up with base game maps only. We are hard at work isolating and fixing this issue and will have an ETA on this later. Stay tuned for more information. In the meantime, using Quick Match will let you select and play on any map, from the base game or Back to Karkand."

The Back to Karkand expansion is free to everyone who purchased the Limited Edition version of Battlefield 3. Moments ago, the official Battlefield 3 blog posted that the PS3 version of the pack was now out in Europe, Australia and New Zealand and that it would be hitting North America between 2 p.m. and 6 p.m. PST today and hitting Japan and the rest of Asia on Dec. around 3 p.m. JST.

The above video shows some new gameplay from the expansion pack, all pulled from the Playstation 3. The Karkand pack comes with four Battlefield 2 maps recreated in the Frostbite 2 engine. The pack also includes three vehicles from Battlefield 2 and one new vehicle. It also comes with ten weapons from Battlefield 2. And, according to the blog, those weapons will be usable in all Battlefield 3 maps once you get the DLC.

Developers DICE say that players will be receiving an in-game pop-up window once Back to Karkand is live in their area.

Back to Karkand #7: Out now on PS3, new gameplay trailer live!