The Stimulus Package was released yesterday, and as we reported then it didn't exactly work. The developers have been hard at work though, and the DLC map pack is supposed to be fixed now. So go frag friends and foe alike in five new maps, three new and two classic maps, for 1200 Microsoft points.
If you're uncertain if the pack is worth the money or not, we've sent our special forces to investigate and will deliver a report soon.