Pre-ordering Halo 3: ODST at participating retailers will net you a token to unlock Sergeant Johnson as a playable character in the new Firefight mode. Find a list of the participating retailers after the break.
- US: Amazon, Best Buy, Gamestop, Wal-Mart.
- France: GAME, FNAC, JV&Co, Virgin, Amazon, Pixmania, Cdiscount, Rue du Commerce
- Germany: Amazon and Gamestop
- Italy: Gamestop
- UK: Game, Gamestation, Amazon, Play