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Archived: Halo 3 Achievements exposed...

Xbox360achievements.org has posted a list of achievements for Halo 3 even though the game isn't scheduled to be released until September. The list gives you a good idea of what to expect in Campaign mode(s).

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There are 49 achievements with a total of 1000 points.

Landfall
20
Finish the first mission of the Campaign on Normal, Heroic, or Legendary.
Holdout
20
Finish the second mission of the Campaign on Normal, Heroic, or Legendary.
The Road
20
Finish the third mission of the Campaign on Normal, Heroic, or Legendary.
Assault
30
Finish the fourth mission of the Campaign on Normal, Heroic, or Legendary.
Cleansing
30
Finish the fifth mission of the Campaign on Normal, Heroic, or Legendary.
Refuge
30
Finish the sixth mission of the Campaign on Normal, Heroic, or Legendary.
Last Stand
40
Finish the seventh mission of the Campaign on Normal, Heroic, or Legendary.
The Key
40
Finish the eighth mission of the Campaign on Normal, Heroic, or Legendary.
Return
50
Finish the final mission of the Campaign on Normal, Heroic, or Legendary.
Campaign Complete: Normal
125
Finish the Campaign on Normal.
Campaign Complete: Heroic
125
Finish the Campaign on Heroic (unlocks achievement for Normal, if not earned).
Campaign Complete: Legendary
125
Finish the Campaign on Legendary (unlocks achievements for Normal and Heroic, if not earned).
Iron
10
Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull.
Black Eye
10
Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull.
Tough Luck
10
Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull.
Catch
10
Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull.
Fog
10
Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull.
Famine
10
Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull.
Thunderstorm
10
Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull.
Tilt
10
Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull.
Mythic
10
Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull.
Spartan Program Recruit
10
Win your first game in matchmaking to sign up for the Spartan Program (Online).
UNSC Spartan
15
Earn your Sergeant rating to be recognized as a true Spartan (Online).
Spartan Officer
25
Advance to the Spartan Officer ranks (Online).
Two for One
5
Score a Double Kill with a single spartan laser shot in a ranked free for all playlist (Online).
Too Close to the Sun
5
Destroy an enemy banshee with the spartan laser or missile pod in a ranked playlist or in campaign.
Triple Kill
5
Kill 3 enemies within 4 seconds of one another in a ranked free for all playlist (Online).
Overkill
5
Kill 4 enemies within 4 seconds of one another in a ranked free for all playlist (Online).
Lee R Wilson Memorial
5
Score 5 grenade sticks in any ranked free for all playlist (Online).
Were in for some Chop
5
Destroy an enemy vehicle with equipment in a ranked playlist or in campaign.
Killing Frenzy
5
Kill 10 enemies without dying in any ranked free for all playlist (Online).
Steppin' Razor
5
Score a Triple Kill with the sword in a ranked free for all playlist (Online).
Mongoose Mowdown
5
Splatter an enemy with the mongoose in a ranked free for all playlist (Online).
Up Close and Personal
5
Kill 5 enemies by melee or assassination in a ranked free for all playlist (Online).
Fear the Pink Mist
5
Kill 5 enemies with the needler in a ranked free for all playlist or in campaign.
Headshot Honcho
5
Kill 10 enemies with headshots in a ranked free for all playlist or in campaign.
Used Car Salesman
5
Destroy a vehicle that has three enemies in it in a ranked playlist or in campaign.
Marathon Man
40
Locate and access all Terminals in the Campaign.
MVP
5
Earn the MVP in any ranked playlist (Online).
Maybe Next Time Buddy
5
Board the same vehicle within 10 seconds after being boarded in any free for all playlist (Online).
Demon
10
Score over <X> points in the Campaign meta-game on the second mission.
Guerilla
10
Score over <X> points in the Campaign meta-game on the first mission.
Cavalier
10
Score over <X> points in the Campaign meta-game on the third mission.
Askar
10
Score over <X> points in the Campaign meta-game on the fourth mission.
Exterminator
10
Score over <X> points in the Campaign meta-game on the fifth mission.
Ranger
10
Score over <X> points in the Campaign meta-game on the sixth mission.
Vanguard
10
Score over <X> points in the Campaign meta-game on the seventh mission.
Orpheus
10
Score over <X> points in the Campaign meta-game on eighth mission.
Reclaimer
10
Score over <X> points in the Campaign meta-game on the final mission.

Theese look incredibly easy, except for beat the game on Legendary and collect all of the skulls. I'm only confused about theese meta-game things

nothing too interesting

Hmmm, 9 missions i see, hopefully take awhile to complete.. if i had to guess what meta-game is, it would be multiplayer campaign

the online achievments look simple

I don't get all of the skull acheivements,

There were skulls in halo 2 in really awkward hard to find places. If you found one they gave you interesting powers.

Quote by Hockeypuck55:

There were skulls in halo 2 in really awkward hard to find places. If you found one they gave you interesting powers.

I hate achievements like these. I don't think anyone enjoys searching high and low for COG tags or hidden orbs.