Blades of Fury

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

Pull

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

Ghost Patrol

On Longshore, got 3 kills with a Ghost during a ranked or social match.

Longshore Skull

On Longshore, found the hidden skull.

Vidmaster Challenge: Brainpan

Found all the hidden skulls on the Mythic maps.

Heretic Skull

On Heretic, found the hidden skull.

Citadel Skull

On Citadel, found the hidden skull.

Vidmaster Challenge: Annual

After 9/25/08, completed Halo on 4-player Legendary LIVE co-op, with Iron, and everyone in Ghosts.

Have Fun Respawning

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

Look Both Ways

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

Flag Dropped

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

Post Mortem

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

Save This Film

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

Alas, Poor Yorick

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

Defend This

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

Road Rage

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

Vidmaster Challenge: 7 on 7

Entered into a ranked or social playlist with 7 EXP on the 7th of the month.

Killtacular

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

Sandbox Skull

On Sandbox, found the hidden skull.

Tank Dropper

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

Delicious Brains

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

Zombie Repeller

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

… Get the Horns

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

Hammer Time

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

Awww, Too Bad

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

Came… From… Behind

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

Double Double

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

Orbital Skull

On Orbital, found the hidden skull.

Assembly Skull

On Assembly, found the hidden skull.

Vidmaster Challenge: Lightswitch

Got the rank of Lieutenant in any playlist in the new EXP progression system.

Maybe Next Time Buddy

Boarded the same vehicle within 10 seconds after being boarded in any free for all playlist.

Reclaimer

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

Orpheus

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

Vanguard

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

Ranger

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

Exterminator

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

Askar

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

Cavalier

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

Demon

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

Guerilla

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

Marathon Man

Accessed all Terminals in the Campaign.

Campaign Complete: Heroic

Completed the Campaign on Heroic difficulty.

Campaign Complete: Legendary

Completed the Campaign on Legendary difficulty.

Return

Completed the final mission of the Campaign.

Campaign Complete: Normal

Completed the Campaign on Normal difficulty.

The Key

Completed the eighth mission of the Campaign.

We’re in for some Chop

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

Used Car Salesman

Destroyed a vehicle that has three enemies in it in a ranked playlist or in campaign.

Last Stand

Completed the seventh mission of the Campaign.

Thunderstorm

Claimed Thunderstorm skull.

Overkill

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

Mongoose Mowdown

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

Refuge

Completed the sixth mission of the Campaign.

Two for One

Scored a Double Kill with a single spartan laser shot in a ranked free for all playlist.

Cleansing

Completed the fifth mission of the Campaign.

Steppin' Razor

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

Famine

Claimed Famine skull.

Headshot Honcho

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

Tilt

Claimed Tilt skull.

Mythic

Claimed Mythic skull.

Fog

Claimed Fog skull.

Assault

Completed the fourth mission of the Campaign.

Catch

Claimed Catch skull.

The Road

Completed the third mission of the Campaign.

Spartan Officer

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

Tough Luck

Claimed Tough Luck skull.

Holdout

Completed the second mission of the Campaign.

Black Eye

Claimed Black Eye skull.

Landfall

Completed the first mission of the Campaign.

Iron

Claimed Iron skull.

Too Close to the Sun

Destroyed a banshee with the spartan laser or missile pod in a ranked playlist or in campaign.

Killing Frenzy

Killed 10 enemies without dying in any ranked free for all playlist.

Triple Kill

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

Lee R Wilson Memorial

Scored 5 grenade sticks in any ranked free for all playlist.

UNSC Spartan

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

Up Close and Personal

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

MVP

Earned the MVP in a ranked playlist.

Fear the Pink Mist

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

Graduate

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