heres all you gotta do Play Halo 3 or Halo 3: ODST online next Wednesday or Thursday while wearing a special emblem of support and Bungie will make a donation for you. For every 1,000 participants, $100 goes to the American Red Cross on behalf of Bungie and its community, up to a maximum donation of $77,000. Don't miss out, here are the specifics on how to participate according to Bungie. 1. Round up all of your friends and hop online with Halo 3 or ODST any time next from 00:01AM PST Wednesday, 1/20, through 23:59PM PST Thursday 1/21. 2. Edit your appearance settings so your character is wearing the RED HEART emblem. a. Press START b. Select "SETTINGS" / "APPEARANCE" c. Select "EMBLEM" d. Select "Hearts" ICON, "Circle" BACKGROUND e. Back out to the APPEARANCES menu and select "COLORS" f. Set "EMBLEM PRIMARY" to RED (or MAROON / BRICK / ROSE depending on which game you're playing!) g. Set "EMBLEM SECONDARY" to WHITE 3. Once your emblem is set, play! This can be a custom game or a matchmaking game, just make sure it's played online, on Xbox LIVE, or we can't track it. If you keep playing more games through midnight on Thursday, KEEP THE HEART EMBLEM ENABLED or you may not get counted. Last, but not least, take some screenshots of your escapades and tag them as HERO. Bungie will be sending some special t-shirts to some participants as a way of saying thanks.