Last month, 2K Games announced plans for their first downloadable content expansion for their first person shooter sequel BioShock 2. Today they confirmed that the first such release, the Sinclair Solutions Tester Pack, would be released on Thursday, March 11. The pack will be made available to download via Games For Windows Live for 400 Microsoft points (about $5).

As we mentioned when we first reported on this story, the DLC will concentrated on adding more to the game's multiplayer modes that were made by developer Digital Extremes. The additions include a rank increase to level 50, a third weapons upgrade for each weapon, two new playable character (Louie McGraff and Oscar Calraca), 20 new trials and five more masks.

[Via email press release]