The Pitt DLC is now finally available to download off Xbox Live. However, if you downloaded a corrupted copy yesterday morning, you will need to erase the old DLC before getting the new copy. Follow these steps (via MajorNelson) to erase it,

• Sign in to Xbox LIVE then press the guide button
• Go to Settings->System Settings->Memory.
• From here, scroll down to Fall Out 3 and press A.
• Select Fallout 3: The Pitt (Marketplace Content) press A then choose Delete, then Yes to Delete.

The Pitt opens with a desperate radio message, and a meeting with its sender, an escaped slave named Wernher. Wernher claims that the leader of “The Pitt” has created a cure for mutations… and he needs you to go in and retrieve it. From there, the player can proceed in a number of ways, in true Fallout 3 style.

Do you fight your way in, or disguise yourself as a slave? Ally with the slaves, or join their Raider overlords?

The Pitt is very morally ambiguous – there’s no real right or wrong, just choices to be made, sides to be chosen, and a mystery that could send shockwaves throughout the entire Wasteland.

Check it out on the Xbox Marketplace!