BioWare's Cerberus Network Page has details on a new Firewalker pack to be released for Mass Effect 2 next month (thanks Destructoid). The new content is free to owners of the Cerberus Network, which is included with new copies of BioWare's action/RPG sequel, but must be purchased by the dastardly scoundrels who buy the game used. Here's word on the pack:

Download the Firewalker pack and gain access to 5 new missions featuring the Hammerhead. The Hammerhead is a heavy assault vehicle that hovers over the battlefield at up to 120 kilometers per hour and features a guided missile system ensuring accuracy even during aggressive maneuvering. Coming late March, free to all Cerberus Network members!