Microsoft has just announced that gamers who pre-order Halo 3: ODST from selected retailers will receive a special unlock code for the game which will grant them access to famous character Sgt. Johnson who will be playable in Firefight.
And for those who dont know what the firefight is.... It is basically a type of game mode like the Horde mode in Gears of war where you will pitt yourself and a few buddies against wave after wave of Covenant Baddies....
