Gamasutra:
Microsoft has announced that three all-new Halo 3 multiplayer
maps will be available in a single Xbox Live downloadable, called the
Heroic Map Pack. The entire pack will be available for 800 Microsoft
Points.
According to Microsoft, each of the three maps will present a different
play style. Standoff features a symmetrical valley with
entrenched bases and fields of bounders, oriented for mid-sized
objective and Slayer game types, while Rat's Nest features labyrinthine
passages that create a Campaign-oriented experience ideal for indoor
vehicles.
The third map, Foundry, allows players to edit all of the objects in an
industrial warehouse, placing stairways, walls, bridges and tunnels to
build their own play space and customize their own map.
Additionally, all three maps are player-customizable through the game's Forge feature, and Halo 3's matchmaking playlists are also set to undergo ongoing updates to optimize the social gameplay.
The three maps will become available for purchase on Xbox Live
Marketplace December 11th, 2007, and Microsoft says that they will
become free downloadables in Spring 2008, just prior to the next
release of newer Halo 3 multiplayer maps.