Halo series developer Bungie has revealed a screenshot of the third map that will be included in the Halo 3 Mythic Map Pack, with Microsoft filling in some details.

Described as "unlike any Bungie has ever created," Sandbox features a "tiered, open-world layout" that "combines large-scale vehicular combat with a limitless amount of Forge customization." It joins the previously revealed Assembly and Orbital maps.

The Halo 3 Mythic Map Pack will be included in the Halo Wars Limited Edition, slated to hit North America on March 3, and will likely hit as a paid Xbox 360 download later on.

In addition, two pieces of art from Bungie's standalone Halo 3 prequel Halo 3: ODST were provided, both of which were previously featured in Game Informer. Due this fall, the standalone Xbox 360 game is said to pack 3-5 hours of gameplay for under $60.