Get the all new, revolutionary Mythic Map Pack and put some fun back into your life. Made from Space Age polymers, the Mythic Map Pack comes with not one, not two, but three new multiplayer arenas, including the Forger’s paradise, Sandbox. Still not convinced? Download this Trailer and check out all the amazing features the Mythic Map Pack has to offer. The Mythic Map Pack is available April 9, 2009. (Not Rated)

Bungie Day - the seventh day of the seventh month - comes once a year. This year, celebrate Bungie Day with a slew of content on Xbox LIVE Marketplace including Cold Storage, an update of Halo: Combat Evolved multiplayer classic, Chill Out. In this ViDoc, explore the mysteries and realities of Cold Storage in this Bungie-guided tour of a map where a Flood outbreak forced a premature evacuation. The emptied Forerunner research facility serves as a grim reminder of how even the best laid plans can fail. Warmly crafted, dutifully beautified update of Halo: CE classic multiplayer map, Chill Out. Love, Bungie (Not Rated)

Mapmaker, mapmaker make me a map! Join the actual creators of the Halo Legendary Map Pack as they take you on a guided tour of their creations. See the spaces and places they envisioned and hear where that inspiration came from and how it plays out in the Halo universe. Get a unique perspective and some solid, practical tips on how to play the latest Halo 3 multiplayer levels, Blackout, Avalanche and Ghost Town. (Not Rated)

Celebrate the free release of Halo 3’s Heroic Map pack with this trailer; it features a few of our favorite things created by the community using the Heroic maps. (Not Rated)

Explore the darkness and danger of The Halo 3 Legendary Map Pack – Blackout, Avalanche and Ghost Town. Wander the catwalks and catacombs of Blackout and its vertiginous series of aeries and turrets, illuminated by the chill and baleful glare of a moonlit sky. Avalanche is colder still, and as vast as it is icy. Fly on silent wing through its valleys and caverns. Ghost Town’s ruinous abandonment and forlorn wreckage is a testament to battles past and a warning of battles to come. See all of these spectral spaces from the unique and haunting perspective of an Elite who has known both sides of the conflict. (Not Rated)

Follow the Master Chief in his fight against the Covenant as he uncovers Halo and battles to unravel the mystery behind it. On a journey from the Pillar of Autumn to the portals of High Charity, he will encounter not one enemy but many: A terrible army occupies Earth, a vicious parasite is loosed on the galaxy, an ancient alien doomsday weapon is primed and ready to fire... And mankind’s survival hinges on the remaining few.

Take a closer look at two of Halo 3’s coolest features. The Forge map and object editor lets you recreate Halo 3 multiplayer maps to suit your style, or cooperate with up to eight other players to build a new game experience. Saved Films let you replay your games, Campaign or Multiplayer, from any angle, with near complete control over the 3D camera and DVD-like functionality. Both features are explained clearly in this in-depth feature, with input and commentary from Bungie and the game designers.

Watch the short film, "Making of John 117 Monument", a behind-the-scenes look at the making of the Halo 3 ad. (Not Rated)

Watch the Halo 3 Ad, "Believe" Diorama. (Not Rated)

Watch the Halo 3 "Believe" ad. (Not Rated)