If you’re on Xbox One (or Xbox 360), you can now get the Vietnam Expansion for Battlefield: Bad Company 2 for free, along with discounts on the main game.
While those on PlayStation 3, PC, Xbox 360, and Xbox One may be able to enjoy a massive discount on Bad Company 2, those on Microsoft consoles are getting a slightly sweeter deal. If you’re on Xbox 360 or Xbox One, you can also pick up the Vietnam Expansion for free. That means you’ll be able to enjoy four additional maps, fifteen different weapons, and six completely different vehicles, all for free. Rad!
This deal is moot, however, if you have EA Access on Xbox One. If that’s the case, you’ve already received Bad Company 2 and its expansions for free.
Source: Xbox Store