Showoff: Wondering how your Screenshots, Saved Films, and Game and Map variants stack up? Upload 'em to Bungie.net and see what the community thinks of your work.

Get Mythic: The newest Halo 3 multiplayer maps are available now! Head over to Xbox LIVE Marketplace and queue them up for download.

Web Presence: Check www.bungie.net for the latest podcasts, blogs, media and jobs from deep within Bungie.

Take a Picture: When you take and save a screenshot it automatically uploads to your Bungie.net profile.

You Got a No Scope?: Talk about your gameplay experiences at our online forums: www.bungie/Forums. But play nice, we're watching.

Carnage Report: Stats from the previous games can be reviewed in the Carnage Reports after each game and view your lifetime aggregate stats on Bungie.net. (2008)

Voice Settings: Visit Voice Communication in your Settings to adjust who you can and can't hear in matchmaking. Silence fools!

Silencio: Quickly mute players during the game by calling up the Scoreboard and using the right stick to select the player you want to silence.

Forge the Foundry: Did you know every object on Foundry can be placed in Forge?

Dot Marks the Spot: With long range weapons like the Battle Rifle, a small dot will appear in the crosshair to indicate you are aiming at their head.

Heroic Goes Free: Free at last! The Heroic Map Pack is free of charge from March 25th. Make sure your download them from Xbox Live Marketplace!

Power Drain: The Power Drain depletes energy shields very rapidly and stuns vehicles, leaving opponents vulnerable to attack...

What's What?: Read the Weekly Update every Friday night at Bungie.net.

Bungie Pro: Upgrade the size of your File Share by downloading Bungie Pro from the Media Menu.

Players Details: Select a gamertag in the lobby to see detailed information about the player and view full players' full service records on Bungie.net.

Sword Fighting: Using the Energy Sword's melee attack is faster than lunging with it. Mix it up.

Stats on Bungie.net: Visit Bungie.net and check your service record to see stats from multiplayer and campaign games

Steady Aim: At range, lead your targets when using the Battle Rifle

Wanna be in Favorites?: Make sure you put your best Screenshots and Films in your File Share so you can get on Bungie Favorites.

Team Chat: To talk to your teammates during the game, tap any direction on the D-pad to activate voice.

Share Films: Upload films of your favorite Halo 3 moments to your File Share and view other players' File Shares on Bungie.net. (2008)

Shortcut: In game menus, quickly jump to the top or bottom of the list by pulling the left and right triggers. (2007-2008)

Bubble Shield: The Bubble Shield can be deployed in hot combat scenarios. Be wary, it keeps out bullets and explosions, but not attackers. (2008)

Recommend This: Select a film in any File Share and recommend it to a friend.

(in 2008 they revised it to: What's in Matchmaking?: Go to http://www.bungie.net/online to see a breakdown of our current playlists in Matchmaking.

Medal Chest: Visit your Bungie.net profile and see what medals you've acquired in Matchmaking.

Working for the Weekend: Earn twice the Experience in out Weekly Double EXP playlists.

Cold Storage is Free!: Download Cold Storage for free from Xbox Live Marketplace. Love, Bungie.

Party Details: See your friends online in a Halo 3 party? Select them in the Xbox Guide and choose Halo 3 Party Details to see what they are playing. (2008)

Dot Marks the Spot: With long-range weapons like the Battle Rifle, a small dot will appear in the crosshair to indicate you are aiming at their head. (2008)

Forge Guide: Check www.bungie.net/forge for tips on using the Forge.

Community Files: Discover what your fellow fans are making at Community Files on Bungie.net.

Take a Picture: When you take and save and save a screenshot it automatically uploads to your Bungie.net profile.

Bungie is Watching: Cheating is being autodetected. Consider this a warning.

Screenshots: View, rate and download your hi-res screenshots and Community screenshots from Bungie.net

Recent Films: Remember, recent films is a temporary list, if you want to keep a film, go to the Theater and save it to your Library. (from Launch)

Party Up: The Party Leader decides whether or not your party will join up with players you meet in Matchmaking. (from Launch)

Jump Joy: Deploy a Grav Lift in front of a rapidly approaching vehicle, if only to see the expression on the occupants'' faces. (from Launch)

Share Films: Upload films of your favorite matchmaking exploits to your File Share (from Launch)

Saved Films: Visit Recent Films in the Theater to save your favorite films. Up to 25 of you most recent are available. (from Launch)

Keeping it Social: Social playlists allow larger parties to stay together in matchmaking, even if the party size is bigger than the team size. (from Launch)

Stats on Bungie.net: Visit your Service Record to see detailed stats from multiplayer and campaign games. (from Launch)

Mute: Quickly mute players during the game by calling up the Scoreboard and using the right stick to select the player you wish to silence.(from Launch)

Carnage Report: Prior game statistics can be reviewed in the Carnage Report after every game. (from Launch)

Appearance: You may change your appearance in multiple ways. Select colors and other custom options in Settings. (from Launch)

Bubble Shield: The bubble Shield can be deployed in hot combat scenarios. It will protect you from bullets and explosions, but attackers may enter and kill you. (from Launch)

Dot Marks the Spot: With long-range weapons like the Battle Rifle, a small dot will appear in the crosshair to let you know you have targeted the opponent's head. (from Launch)

Pistol Whips: The Plasma Pistol has a devastating effect on vehicle drive mechanisms. Try an overcharged blast on a fleeing vehicle. (from Launch)

Carnage Breakdown: In the Carnage Report, press the right and left bumpers to see more stats, including the kill/death spread, assists, and more. (from Launch)

Voice Indicator: When you talk a broadcast icon will appear in the lower right corner of the screen to let you know that your teammates can hear you. (from Launch)

Think Dual: While dual-wielding weapons, remember that each one can be reloaded independently. Try to gauge how much ammo is in each. (from Launch)

Veto Power: If the majority of players vote to veto a game and map in matchmaking, a new combination will be selected. (from Launch)

Recommendations: Select a film in any File Share and recommend it to a friend. (from Launch)

Party Details: See your friends online in a Halo 3 party, and then select them in the Xbox Guide and choose. Halo 3 Party Details to get more information. (from Launch)

Hazard Bio: Select players in the Carnage Report and view a detailed breakdown of their medals and tools of destruction. (from Launch to 2008)

Game Controls: Try different control schemes to see which type suits you best. Change your scheme at any time in Settings. (from LAUNCH)

What's in Matchmaking?: Go to http://www.bungie.net/online/playlists.aspx to see a breakdown of our current playlists. (from Launch)