Multiplayer-focused add-on to 2K Games' underwater dystopian shooter deploying next week on 360, PS3, PC for $5.

BioShock 2 proved to be a big winner as part of Take-Two's fiscal first-quarter earnings report earlier this week, shipping 3 million units across the Xbox 360, PlayStation 3, and PC. With sales figures like that, the publisher should find plenty of fertile soil for BioShock 2's first expansion. Today, 2K Games said the first add-on, called Sinclair Solutions Tester Pack, will arrive on all three platforms March 11 for $5 (400 Microsoft points).
The Sinclair Solutions Tester Pack is aimed at the game's multiplayer mode, which was developed by Dark Sector studio Digital Extremes. With the pack, players will be able to attain rank 50 in multiplayer mode, as well as play as Louie McGraff and Oscar Calraca. The Sinclair Solutions Tester Pack is rounded out with 20 new trials, a third upgrade for each weapon, and five new masks.

2K Games noted that it has several more add-on packs scheduled to arrive in the next few months that will expand both the single-player and multiplayer portions of BioShock 2. Included in the packs will be additional narrative, as well as new tools and challenges that are designed to further flesh out the tragic fall of Rapture. Tom Magrino