By completing 69 million team actions such as ammo sharing, healing, reviving, and spotting enemies, each respective console was given the opportunity to unlock a special map. ‘Operation Hasting’ has now been unlocked for the PC in Battlefield: Bad Company 2 Vietnam, because those players have been such great teammates. As for the other two brothers in this console world, the Xbox 360 has second with around 36 million, and the PS3 has just below 30 million.
So if you want that special map, I suggest putting in that disc and getting to work. And no, friendly fire does not count. The Vietnam expansion for Battlefield: Bad Company 2 is available now for $15.