Bethesda's detailed its Fallout 3 DLC, promising that Operation Anchorage will expand the game by roughly four to five hours.
The content will cost 800 points and is pencilled in for a January release. It will see you fight the Chinese red army and liberate the town of Anchorage via an in-game simulator. The mission will focus on stealth and a new 'Covert Ops' perk will be available to the player.
Operation Anchorage "will include new weapons, armor and achievements! It's full of top-secret technology used by both sides during the war, which the player will of course be able to use throughout the main game as well," said Fallout 3 lead producer Jeff Gardiner to IGN.
Hit the link for much more including some details on two more expansion packs, Broken Steel and The Pit.