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Halo 3 Achievements

Full list of all 79 Halo 3 achievements worth 1,750 gamerscore. It takes around 40-50 hours to unlock all of the achievements in the base game on Xbox 360.

The base game contains 49 achievements worth 1,000 Gamerscore, and there are 4 DLC packs containing 30 achievements worth 750 Gamerscore.

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  • Marathon Man

    Accessed all Terminals in the Campaign.

    20 August 2009 - 9 guides
  • Exterminator

    Earned over 15,000 points in the Campaign meta-game on the fifth mission.

    05 July 2009 - 3 guides
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  • Steppin' Razor

    Scored a Triple Kill with the sword in a ranked free for all playlist.

    04 July 2009 - 7 guides
  • Triple Kill

    Killed 3 enemies within 4 seconds of one another in a ranked free for all playlist.

    04 July 2009 - 6 guides
  • Mongoose Mowdown

    Splattered an enemy with the mongoose in a ranked free for all playlist.

    07 June 2009 - 9 guides
  • Askar

    Earned over 15,000 points in the Campaign meta-game on the fourth mission.

    13 April 2009 - 4 guides
  • Cavalier

    Earned over 15,000 points in the Campaign meta-game on the third mission.

    13 April 2009 - 4 guides
  • Demon

    Earned over 15,000 points in the Campaign meta-game on the second mission.

    13 April 2009 - 4 guides
  • Guerilla

    Earned over 15,000 points in the Campaign meta-game on the first mission.

    12 April 2009 - 5 guides
  • Headshot Honcho

    Killed 10 enemies with headshots in a ranked free for all playlist or in campaign.

    12 April 2009 - 5 guides
  • Mythic

    Claimed Mythic skull.

    26 June 2008 - 3 guides
  • The Key

    Completed the eighth mission of the Campaign.

    26 June 2008 - 1 guide
  • Tilt

    Claimed Tilt skull.

    26 June 2008 - 4 guides
  • Spartan Officer

    True veteran of many battles, you are a Spartan Officer.

    25 June 2008 - 9 guides
  • Thunderstorm

    Claimed Thunderstorm skull.

    18 June 2008 - 3 guides
  • Cleansing

    Completed the fifth mission of the Campaign.

    14 June 2008 - 1 guide
  • Fog

    Claimed Fog skull.

    14 June 2008 - 4 guides
  • Catch

    Claimed Catch skull.

    14 June 2008 - 5 guides
  • Famine

    Claimed Famine skull.

    13 June 2008 - 5 guides
  • Tough Luck

    Claimed Tough Luck skull.

    12 June 2008 - 3 guides
  • Assault

    Completed the fourth mission of the Campaign.

    29 May 2008 - 1 guide
  • Last Stand

    Completed the seventh mission of the Campaign.

    24 May 2008 - 2 guides
  • The Road

    Completed the third mission of the Campaign.

    17 May 2008 - 1 guide
  • Holdout

    Completed the second mission of the Campaign.

    17 May 2008 - 1 guide
  • Black Eye

    Claimed Black Eye skull.

    17 May 2008 - 3 guides
  • Landfall

    Completed the first mission of the Campaign.

    17 May 2008 - 1 guide
  • Iron

    Claimed Iron skull.

    17 May 2008 - 3 guides
  • UNSC Spartan

    Promoted to Sergeant. Proven in combat, you are a Spartan.

    04 May 2008 - 2 guides
  • MVP

    Earned the MVP in a ranked playlist.

    04 May 2008 - 3 guides
  • Fear the Pink Mist

    Killed 5 enemies with the needler in a ranked free for all playlist or in campaign.

    03 May 2008 - 6 guides
  • Graduate

    Graduated from basic training. Stick with it to earn your Spartan Insignia.

    02 May 2008 - 4 guides
  • Up Close and Personal

    Killed 5 enemies by melee or assassination in a ranked free for all playlist.

    01 May 2008 - 2 guides
  • Two for One

    Score a Double Kill with a single spartan laser shot in a ranked free for all playlist (Online).

    Locked - 18 guides
  • Overkill

    Kill 4 enemies within 4 seconds of one another in a ranked free for all playlist (Online).

    Locked - 9 guides
  • We’re in for some Chop

    Destroy an enemy vehicle with equipment in a ranked playlist or in campaign.

    Locked - 3 guides
  • Killing Frenzy

    Kill 10 enemies without dying in any ranked free for all playlist (Online).

    Locked - 9 guides
  • Maybe Next Time Buddy

    Board the same vehicle within 10 seconds after being boarded in any free for all playlist (Online).

    Locked - 7 guides
  • Ranger

    Score over 50,000 points in the Campaign meta-game on the sixth mission.

    Locked - 6 guides
  • Vanguard

    Score over 50,000 points in the Campaign meta-game on the seventh mission.

    Locked - 6 guides
  • Orpheus

    Score over 15,000 points in the Campaign meta-game on the eighth mission.

    Locked - 4 guides
  • Reclaimer

    Score over 15,000 points in the Campaign meta-game on the final mission.

    Locked - 4 guides
Add-on

Legendary Map Pack

433
250
7
3.84
183,749
48,248 (26%)
2-3h
Legendary Map Pack
  • Alas, Poor Yorick

    On a Legendary map, got 3 Oddball melee kills during a ranked or social match.

    31 January 2009 - 9 guides
  • Double Double

    On a Legendary map, got two Double Kills during a ranked or social match.

    24 September 2008 - 6 guides
  • Look Both Ways

    On a Legendary map, got a Splatter Spree during a ranked or social match.

    24 September 2008 - 9 guides
  • Road Rage

    On a Legendary map, got 5 Warthog chaingun kills during a ranked or social match.

    24 September 2008 - 7 guides
  • Came… From… Behind

    On a Legendary map, got 3 assassinations during a ranked or social match.

    24 September 2008 - 4 guides
  • Flag Dropped

    On a Legendary map, got 2 flag carrier kills during a ranked or social match.

    24 September 2008 - 6 guides
  • Defend This

    On a Legendary map, got a flag melee kill during a ranked or social match.

    24 September 2008 - 5 guides
Update

Vidmaster Challenges

0
0
3
3.72
141,338
49,545 (35%)
2-3h
Vidmaster Challenges
Add-on

Mythic Map Pack

586
325
13
3.81
211,948
35,978 (17%)
2-3h
Mythic Map Pack
  • Assembly Skull

    On Assembly, found the hidden skull.

    Unlocked offline - 4 guides
  • Orbital Skull

    On Orbital, found the hidden skull.

    Unlocked offline - 5 guides
  • Sandbox Skull

    On Sandbox, found the hidden skull.

    Unlocked offline - 10 guides
  • … Get the Horns

    On a Mythic map, got a Bulltrue medal during a ranked or social match.

    29 May 2009 - 13 guides
  • Zombie Repeller

    On a Mythic map, killed 2 Zombies during a ranked or social match.

    11 May 2009 - 3 guides
  • Delicious Brains

    On a Mythic map, infected 2 humans during a ranked or social match.

    11 May 2009 - 3 guides
  • Have Fun Respawning

    On a Mythic map, got an Extermination during a ranked or social match.

    13 April 2009 - 6 guides
  • Hammer Time

    On Assembly, got 5 Hammer kills during a ranked or social match.

    11 April 2009 - 4 guides
  • Post Mortem

    On Orbital, got 2 Death From the Grave medals during a ranked or social match.

    11 April 2009 - 10 guides
  • Awww, Too Bad

    On a Mythic map, got a Killjoy medal during a ranked or social match.

    10 April 2009 - 2 guides
  • Tank Dropper

    On a Mythic map, got a kill on another player while in monitor mode.

    09 April 2009 - 14 guides
  • Killtacular

    On a Mythic map, get a Killtacular during any ranked or social match.

    Locked - 11 guides
  • Save This Film

    On a Mythic map, get a Perfection medal during any ranked or social match.

    Locked - 9 guides
Add-on

Mythic II Map Pack

299
175
7
3.81
159,701
43,641 (27%)
2-3h
Mythic II Map Pack
  • Longshore Skull

    On Longshore, found the hidden skull.

    24 September 2009 - 3 guides
  • Citadel Skull

    On Citadel, found the hidden skull.

    24 September 2009 - 5 guides
  • Heretic Skull

    On Heretic, found the hidden skull.

    24 September 2009 - 6 guides
  • Pull

    On Citadel, get a Shotgun Spree during any ranked or social match.

    Locked - 5 guides
  • Blades of Fury

    On Heretic, get a Sword Spree during any ranked or social match.

    Locked - 4 guides
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Halo 3 Achievements FAQ
  • How many achievements are there in Halo 3?
    There are 79 achievements in Halo 3, worth a total of 1,750 Gamerscore.
    You can view the full list of Halo 3 achievements here.
  • Is Halo 3 on Game Pass?
    No, Halo 3 is not currently available on either Xbox Game Pass or PC Game Pass.
  • When did Halo 3 release on Xbox?
    Halo 3 was released on September 25th, 2007.
  • How long does it take to complete all the achievements in Halo 3?
    It takes between 40 and 50 hours to complete the base game achievements in Halo 3. You can find a full guide to unlocking all of the achievements in the Halo 3 walkthrough.