Players are given two new challenge maps, 'Heart of Darkness,' which focuses taking on wave after wave of Joke goons in hand-to-hand combat, and, 'Hothouse Prey,' a map that requires a more stealthy approach.
The content will be available free starting tomorrow, September 24, but there is one important point to mention. The content is exclusive to PlayStation 3 in North America. It's available for the Xbox 360, as well as PlayStation 3, in Europe.
Update: An Eidos rep re-confirmed the DLC region exclusivity. We're following up with Microsoft to see why the content is not coming to North America for Xbox 360.