The bonus map, a remake of 'Operation Hastings' from Battlefield: Vietnam, will be unlocked when Nam players have performed a whopping total of 69 million team actions. That's 69 million resupplies, revives, heals, spots and repairs.

Why 69 million? It could be that 69 is the most hilarious number known to video games or simply that the Vietnam War DLC may be set in the year 1969, much like the Battlefield 1943's bonus map challenge was to rack up 43 million kills in 2009. Unlike the BF1943 challenge, though, where each individual platform had to unlock the map separately, Nam's target is shared across all three platforms.

Vietnam is slated for a PC launch on December 18, followed by Xbox 360 and PS3 releases on December 21. It'll run you $15 (1200 Microsoft Points).

For a peek at Operation Hastings, check out the new Nam trailer below. 69, dudes!