Box art - Halo 3

Halo 3 XBOX LIVE Achievements

AchievementPoints

How to...Achieve

Landfall

20

Complete the first mission of the Campaign on Normal, Heroic, or Legendary.
Holdout

20

Complete the second mission of the Campaign on Normal, Heroic, or Legendary.
The Road

20

Complete the third mission of the Campaign on Normal, Heroic, or Legendary.
Assault

30

Complete the fourth mission of the Campaign on Normal, Heroic, or Legendary.
Cleansing

30

Complete the fifth mission of the Campaign on Normal, Heroic, or Legendary.
Refuge

30

Complete the sixth mission of the Campaign on Normal, Heroic, or Legendary.
Last Stand

40

Complete the seventh mission of the Campaign on Normal, Heroic, or Legendary.
The Key

40

Complete the eighth mission of the Campaign on Normal, Heroic, or Legendary.
Return

50

Complete the last mission of the Campaign on Normal, Heroic, or Legendary.
Campaign Complete: Normal

125

Complete the Campaign on Normal.
Campaign Complete: Heroic

125

Complete the Campaign on Heroic (unlocks the achievement for Normal, if not earned).
Campaign Complete: Legendary

125

Complete the Campaign on Legendary (unlocks the achievement for Normal, if not earned).
Iron

10

Complete the Campaign on Normal, Heroic, or Legendary, then find and claim this skull.
Black Eye

10

Complete the Campaign on Normal, Heroic, or Legendary, then find and claim this skull.
Tough Luck

10

Complete the Campaign on Normal, Heroic, or Legendary, then find and claim this skull.
Catch

10

Complete the Campaign on Normal, Heroic, or Legendary, then find and claim this skull.
Fog

10

Complete the Campaign on Normal, Heroic, or Legendary, then find and claim this skull.
Famine

10

Complete the Campaign on Normal, Heroic, or Legendary, then find and claim this skull.
Thunderstorm

10

Complete the Campaign on Normal, Heroic, or Legendary, then find and claim this skull.
Tilt

10

Complete the Campaign on Normal, Heroic, or Legendary, then find and claim this skull.

Mythic

10

Complete 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).
We're 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

5

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 ~?~ points in the Campaign meta-game on the second mission.
Guerilla

10

Score over ~?~ points in the Campaign meta-game on the first mission.
Cavalier

10

Score over ~?~ points in the Campaign meta-game on the third mission.
Askar

10

Score over ~?~ points in the Campaign meta-game on the fourth mission.
Exterminator

10

Score over ~?~ points in the Campaign meta-game on the fifth mission.
Ranger

10

Score over ~?~ points in the Campaign meta-game on the sixth mission.
Vanguard

10

Score over ~?~ points in the Campaign meta-game on the seventh mission.
Orpheus

10

Score over ~?~ points in the Campaign meta-game on eighth mission.
Reclaimer

10

Score over ~?~ points in the Campaign meta-game on the final mission.