Today, 2K Games announced the Sinclaire Solutions Test Pack, the first batch of downloadable content for the recently released Bioshock 2. In March, this first of many DLC packs will go on sale on the Xbox Live Marketplace, Games for Windows LIVE Marketplace, and Playstation Network.

The Sinclaire Solutions Test Pack will include a variety of new multiplayer features. The maximum rank will be increased to level 50, and there will be 20 new trials and a third upgrade for each weapon.

If you have the special edition, and have flipped through the art book, you might have noticed a few characters that didn't make it into the game. Louie McGraff and Oscar Calraca will be added to the roster of playable multiplayer characters. There will also be five new masks, allowing you to better customize your character.

2K also announced, that in the future, they'll be releasing DLC extending the single-player experience. The packs will add more narrative and insight into Rapture that extend the lore of the city, and new tools and challenges.