Ever wanted lots of cars you could drive inside (as opposed to a nut you can play outside)? Check out Rat's Nest, a base similar to the second level of Halo 3's campaign, but full of vehicles. Next up is Standoff, a fairly large outdoor map suited to objectives, with underground tunnels similar to those of Snowbound.

Finally, crate-strewn FPS haven Foundry is billed as the ultimate Forge map, with nearly all of its geometry in the form of removable objects. It introduces new Forge objects such as ramps and walls, which can be used in all three new maps.

The Heroic Map Pack will be available later today for 800 Microsoft Points ($10), with plans to be free some time in spring 2008, just before the next round of maps. Perhaps that will be called the Legendary Map Pack. You think?