There's no official word on participating retailers in the US or UK just yet, but expect the usual outlets: Amazon, GAME, GameStop, etc.

The goods themselves come in addition to the Back To Karkand expansion pack, which is included with all Limited Editions of the game. If you've pre-ordered Battlefield 3 then you're guaranteed to get the Limited Edition. For everyone else, the pack will cost £11.99 / $14.99.

There are three pre-order bonuses up for grabs. We'll quote the press material for accuracy.

  • Physical Warfare Pack - Type 88 light machine gun with bipod for deadly firepower and total zone control; SKS sniper rifle flash suppressor that provides increased stealth abilities for Recon soldiers; armor-piercing flechette ammo for the DAO-12 semi-automatic shotgun that will tear through anything in its path.
  • SPECACT Kit – Players can expand their customizable options in Battlefield 3 with a set of eight unique multiplayer skins, one for each class in Battlefield 3.
  • Dog Tag Pack – In Battlefield 3, dog tags serve as the player’s in-game signature, allowing gamers to customize their soldiers. Dog tags are displayed on screen every time a player takes down an enemy or claims an opponent’s dog tags. This pre-order exclusive item comes with five new, unique dog tags.

One thing to note: the weapons in the Physical Warfare pack will be available for a limited time, and will later become available to all players.

That's your lot then. Go mad.