The Halo 3 Heroic Map Pack is now available for free from Xbox Live Marketplace.
The Heroic Map Pack was released in December and originally cost 800 Microsoft Points. It contains three maps: Standoff, Rats Nest and Foundry. Check out El33tonline's previous coverage for more detail on the maps or head over to Xbox.com.
The Legendary Map Pack will be available on Xbox Live Marketplace on the 15th of April for 800 Microsoft Points. It will include three new multiplayer maps: Ghost Town, Avalanche and another level which has yet to be revealed.