Bungie have confirmed a list of leaked Halo 3 Achievements shown off last week.

The original list had a few extras that Bungie have kept quiet on but the 10 detailed below have all been confirmed.

The picture that originally revealed the list came from the Penny Arcade Expo, which, according to Bungie, featured an updated version of the now-classic shooter.

The 10 officially announced Achievements, that amount to a sum of 250 Gamerpoints, are shown below. The leak claims 30 Achievements and 250 Gamerpoints will be up for grabs in total.

    Vidmaster Challenge: Lightswitch (0 points) - Get to the rank of Lieutenant in any playlist in the new EXP progression system.
    Vidmaster Challenge: 7 on 7 (0 points) - Enter into any ranked or social playlist with 7 EXP on the 7th of the month.
    Vidmaster Challenge: Annual (0 points) - After 9/25/08, complete Halo on 4-player Legendary LIVE co-op, with Iron, and everyone in Ghosts.
    Double Double (25 points) - On a Legendary map, get two Double Kills during any ranked or social match.
    Poor Yorick (25 points) - On a Legendary map, get 3 Oddball melee kills during any ranked or social match.
    Came...From...Behind (50 points) - On a Legendary map, get 3 assassinations during any ranked or social match.
    Defend This (50 points) - On a Legendary map, get a flag melee kill during any ranked or social match.
    Flag Dropped (25 points) - On a Legendary map, get 2 flag carrier kills during any ranked or social match.
    Road Rage (25 points) - On a Legendary map, get 5 Warthog chaingun kills during any ranked or social match.
    Look Both Ways (50 points) - On a Legendary map, get a Splatter Spree during any ranked or social match.