Battlefield 3: Physical Warfare Pack

The Physical Warfare Pack Players is a weapons pack available to those who preordered Battlefield 3 Limited Edition from select retailers such as Gamestop in the United States, GAME in the United Kingdom, and Origin, which got temporary exclusive access to the Type 88 light machine gun with deployable bipod, a flash suppressor for the SKS sniper rifle and flechette ammunition for the DAO-12, as well as the DAO-12 and SKS themselves. Battlefield 3 Limited Edition: Physical Warfare Pack available for preorder in the UK - Battlefield Blog], retrieved May 23, 2011

Having sparked widespread controversy because it would deprive players that will not receive the pack of some in-game content, DICE addressed the issue and announced that it was a time-based exclusive. It was released for free on the PlayStation Store on December 15th and later for the Xbox 360 and PC on December 20th.