Why play alone? Test your wits and skills against family and friends old and new in Halo 3's unique multiplayer matchmaking experience.

Even Master Chief needs help sometimes, join forces to fight with 4-player co-op.

Star in and watch with your friends your own Halo 3 game movie creation Create map variants, custom game types, screenshots and much, much more to share with friends and the Xbox LIVE community.

Track your Multiplayer and Campaign stats and achievements and view them at any time in-game or at www.bungie.net.

Online Multiplayer (up to 16 players)

• Play match-made games against opponents of similar skill all around the world
• Play custom games with friends, just like they were sitting on the couch next to you
• Cooperatively edit and reconfigure Halo 3 multiplayer maps and enjoy the unique gameexperiences (up to 8 players)
• Watch your saved films together over Xbox LIVE with up to 3 friends (4 players total)

Co-Op Campaign Play (up to 4 players)

• Experience the Halo 3 epic campaign, in co-operative play with up to 3 friends over Xbox LIVE
• Compete to earn the highest standing in the new "Campaign Scoring" feature

Saved Films

• Watch saved films of both Campaign and Multiplayer games with up to four viewers simultaneously - with voice chat enabled
• Share and recommend your films with friends over Xbox LIVE
• Find saved films and screenshots from other users on Bungie.net and automatically flag them for download to your Xbox 360

File Sharing

• Create and customize a variety of content that you can share with anyone around the world over Xbox LIVE
• Create and edit map variants, custom game types, saved films and screenshots then upload them to your personal File Share and spread them throughout the Xbox LIVE community
• Save hi-res screenshots from your campaign and multiplayer saved films and share themthrough your own gallery on Bungie.net
• Access an unlimited amount of content created by the Halo community to keep your game experience fresh and exciting
• Check out films, game-types and map variants that are recommended by Bungie Studios

Stat Tracking

• The games you play on Xbox LIVE will be tracked and archived at Bungie.net with rich, detailed statistics
• Track your campaign scores and compare them with friends or other players on Xbox LIVE
• Show off your medals and achievements
• Build your multiplayer skill and experience ratings and see how you stack up with the rest
• of the world

User generated levels

• Change your favourite Halo 3 multiplayer levels to the suit way you like to play
• A unique, networked map editor lets you reconfigure levels, adding objects, obstacles, vehicles and more
• Up to eight players can cooperate (or battle) to alter and enhance levels in an infinite number of ways
• Play your redesigned map variants instantly over Xbox LIVE with up to 16 players
• Combine map variants with infinitely customisable game rule variants, including editable player traits