Achievements (Halo 3)

There are a total of 79 achievements that can be unlocked in Halo 3. 49 were shipped with the game, worth a total of 1000 Gamerscore , with another 30 downloadable content achievements worth 750 . Some achievements unlock certain armor permutations.

List

Campaign

Icon	Name	Description	Gamerscore
Level Completion
	Landfall	Finish the first mission of the Campaign on Normal, Heroic, or Legendary.	20
	Holdout	Finish the second mission of the Campaign on Normal, Heroic, or Legendary.	20
	The Road	Finish the third mission of the Campaign on Normal, Heroic, or Legendary.	20
	Assault	Finish the fourth mission of the Campaign on Normal, Heroic, or Legendary.	30
	Cleansing	Finish the fifth mission of the Campaign on Normal, Heroic, or Legendary.	30
	Refuge	Finish the sixth mission of the Campaign on Normal, Heroic, or Legendary.	30
	Last Stand	Finish the seventh mission of the Campaign on Normal, Heroic, or Legendary.	40
	The Key	Finish the eighth mission of the Campaign on Normal, Heroic, or Legendary.	40
	Return	Finish the final mission of the Campaign on Normal, Heroic, or Legendary.	50
Campaign Completion
	Campaign Complete: Normal	Finish the Campaign on Normal.	125
	Campaign Complete: Heroic	Finish the Campaign on Heroic (unlocks achievement for Normal, if not earned).	125
	Campaign Complete: Legendary	Finish the Campaign on Legendary (unlocks achievement for Normal and Heroic, if not earned).	125
Skulls
	Iron	Find and claim this skull.	10
	Black Eye	Find and claim this skull.	10
	Tough Luck	Find and claim this skull.	10
	Catch	Find and claim this skull.	10
	Fog	Find and claim this skull.	10
	Famine	Find and claim this skull.	10
	Thunderstorm	Find and claim this skull.	10
	Tilt	Find and claim this skull.	10
	Mythic	Find and claim this skull.	10
Miscellaneous
	Marathon Man	Locate and access all 7 Terminals in the Campaign.	40
Meta-game
	Guerilla	Score over 15,000 points in the Campaign meta-game on the first mission.	10
	Demon	Score over 15,000 points in the Campaign meta-game on the second mission.	10
	Cavalier	Score over 15,000 points in the Campaign meta-game on the third mission.	10
	Askar	Score over 15,000 points in the Campaign meta-game on the fourth mission.	10
	Exterminator	Score over 15,000 points in the Campaign meta-game on the fifth mission.	10
	Ranger	Score over 50,000 points in the Campaign meta-game on the sixth mission.	10
	Vanguard	Score over 50,000 points in the Campaign meta-game on the seventh mission.	10
	Orpheus	Score over 15,000 points in the Campaign meta-game on the eighth mission.	10
	Reclaimer	Score over 15,000 points in the Campaign meta-game on the final mission.	10

Multiplayer

Icon	Name	Description	Gamerscore
Rank
	Graduate	Earn 5 EXP or finish 10 games to complete the requirements for Basic Training (Online).	10
	UNSC Spartan	Earn your Sergeant rating to be recognized as a true Spartan (Online-20 exp).	15
	Spartan Officer	Advance to the Spartan Officer ranks (Online-70 exp).	25
Achievements - Multiplayer Only
	Two for One	Score a Double Kill with a single spartan laser shot in a ranked free for all playlist. (Online).	5
	Triple Kill	Kill 3 enemies within 4 seconds of one another in a ranked free for all playlist (Online).	5
	Overkill	Kill 4 enemies within 4 seconds of one another in a ranked free for all playlist (Online).	5
	Lee R Wilson Memorial	Score 5 grenade sticks in any ranked free for all playlist (Online).	5
	Killing Frenzy	Kill 10 enemies without dying in any ranked free for all playlist (Online).	5
	Steppin' Razor	Score a Triple Kill with the sword in a ranked free for all playlist (Online).	5
	Mongoose Mowdown	Splatter an enemy with the mongoose in a ranked free for all playlist (Online).	5
	Up Close and Personal	Kill 5 enemies by melee or assassination in a ranked free for all playlist (Online).	5
	MVP	Earn the MVP by scoring the most points in any ranked playlist (Online).	5
	Maybe Next Time Buddy	Board the same vehicle within 10 seconds after being boarded in any free for all playlist (Online).	5
Achievements - Multiplayer or Campaign
	Too Close to the Sun	Destroy an enemy Banshee with the Spartan Laser or Missile Pod in a ranked playlist or in campaign.	5
	We're in for Some Chop	Destroy an enemy vehicle with an equipment in a ranked playlist or in campaign.	5
	Fear the Pink Mist	Kill 5 enemies with the Needler in a ranked free for all playlist or in campaign.	5
	Headshot Honcho	Kill 10 enemies with headshots in a ranked free for all playlist or in campaign.	5
	Used Car Salesman	Destroy a vehicle that has three or more enemies in it in a ranked playlist or in campaign.	5

Downloadable Content

An additional 30 achievements, totaling 750 GS, were leaked at PAX 08. All 30 of these, worth of 750 GS, were added in Title Update 2.

Icon	Name	Description	Gamerscore
	Vidmaster Challenge: Annual	Complete Halo on 4-player Legendary LIVE Co-op, with Iron, and everyone in Ghosts.	0
	Vidmaster Challenge: 7 on 7	Enter into any ranked or social playlist with 7 XP on the 7th of the month.*	0
	Vidmaster Challenge: Lightswitch	Get to the rank of Lieutenant in any playlist in the new EXP progression system.	0
	Vidmaster Challenge: Brainpan	Find all the hidden skulls on the mythic maps.	25
	Citadel Skull	On Citadel, find the hidden skull.	25
	Assembly Skull	On Assembly, find the hidden skull.	25
	Sandbox Skull	On Sandbox, find the hidden skull.	25
	Heretic Skull	On Heretic, find the hidden skull.	25
	Longshore Skull	On Longshore, find the hidden skull.	25
	Orbital Skull	On Orbital, find the hidden skull.	25
	Ghost Patrol	On Longshore, get 3 kills with a Ghost during any ranked or social match.	25
	Blades of Fury	On Heretic, get a Sword Spree during any ranked or social match.	25
	Pull!	On Citadel, get a Shotgun Spree during any ranked or social match.	25
	Hammer Time	On Assembly, get 5 Hammer kills in any ranked or social match.	25
	Post Mortem	On Orbital, get 2 Death From the Grave medals during any ranked or social match.	25
	... Get the Horns	On a Mythic map, get a Bulltrue medal during any ranked or social match.	25
	Awww, Too Bad	On a Mythic map, get a Killjoy medal during any ranked or social match.	25
	Killtacular	On a Mythic map, get a Killtacular during any ranked or social match.	25
	Have Fun Respawning	On a Mythic map, get an Extermination during any ranked or social match.	25
	Save This Film	On a Mythic map, get a Perfection medal during any ranked or social match.	25
	Delicious Brains	On a Mythic map, Infect 2 humans during any ranked or social match.	25
	Zombie Repeller	Mythic map, kill 2 Zombies during any ranked or social match.	25
	Tank Dropper	On any Mythic map, get a kill on another player while in monitor mode.	25
	Road Rage	On a Legendary map, get 5 Warthog chaingun kills during any ranked or social match.	25
	Flag Dropped	On a Legendary map, get 2 Flag Carrier kills during any ranked or social match.	25
	Alas, Poor Yorick	On a Legendary map, get 3 Oddball Melee kills during any ranked or social match.	25
	Double Double	On a Legendary map, get two Double Kills during any ranked or social match.	25
	Look Both Ways	On a Legendary map, get a Splatter Spree during any ranked or social match.	50
	Defend This	On a Legendary map, get a Flag Melee kill during any ranked or social match.	50
	Came... From... Behind	On a Legendary map, get 3 Assassinations during any ranked or social match.	50

*Bungie later announced in a weekly update that, to receive this achievement, you actually have to reach 7 EXP on the 7th of any month, not enter with 7 EXP.

Trivia

• Unlocking at least 49 achievements and 1000 Gamerscore gives the Security helmet and Katana body in multiplayer. These pieces may relock unless all 49 non-DLC achievements have been unlocked. Finding all skulls unlocks the Hayabusa Armor.
• Out of the original 49 achievements, the online-only achievements (except maybe next time buddy and MVP) were only obtainable in the playlists Lone Wolves and Head to Head. Occasionally Double EXP Weekend playlists did have Ranked FFA playlist(s) as well, such as Legendary Brawl. The newer achievements added with AU2 are obtainable in both ranked and social playlists, providing it is on the required map(s).
• Some players have been known to use the language glitch for the Halo 3 online achievements, and this is considered boosting and frowned upon by most Halo gamers.
• The UNSC Spartan Achievement, which you receive for reaching sergeant status online, has been known not to unlock for some people regardless of rank. This was later investigated by Bungie and was found that this is because their consoles are turned off before actually receiving the achievement. It should also be noted that, with the new EXP system, the achievement can be obtained through reaching UNSC Spartan level on a playlist. This still, unfortunately, will not unlock the UNSC Spartan pin on a player's global service record.
• The "Vidmaster Challenges" were from Bungie's Marathon series, where players who wished to prove they were the absolute best had to complete insane challenges such as playing through the game without the use of health items, with only fists, on the highest difficulty setting. Those that succeeded made videos to mark their achievement, thus spawning the term "Vidmaster". When all Vidmaster Challenges are completed then Recon armor is unlocked in Halo 3 multiplayer.