Don't forget to get your Dr. Pepper caps for the free DLC!
Buy a Specially (has EA LOGO , Capt. Sheppard, BFBC2 Tank, & Sims 3 Logo) marked Dr Pepper product (20/16/14 OZ BOTTLES or 7/11 Fountain Cup) to get a code, go to DRPEPPER.COM enter the code and get a piece of DLC.
In Battlefield: Bad Company 2 four kit upgrades allow you to become a unique Special Activities soldier, with new camouflage and a modified weapon. Kit upgrades also contain new awards and an additional achievement
Got the info from CAG a while ago.