OK, so I have BF:BC2 on Steam, I want the Vietnam expansion. I heard that it was part of patch and just needs to be unlocked; like the SPECACT thingy, is this correct? My point; EA gave me a free £10 as a birthday present. So I want to buy 'Nam' on the EA Store, will this be just an activation key or will it recognize I have the game, etc., etc. thanks guys!
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it will be an activation key. on the main screen for bfbc2 you should see a vietnam link. click that and it will ask for the key. input it and you should be able to play vietnam