Lone Wolf Legend
Completed the Campaign solo on Legendary difficulty.
90 
Dedicated to Crimson
Completed all chapters in any 5 episodes of Spartan Ops on any difficulty.
80 
The Legend of 117
Completed the Campaign on Legendary difficulty.
70 
Now they Fly?
In Crimson DLC matchmaking, got a kill while airborne in a Warthog.
50 
Bird of Prey
In Majestic DLC matchmaking, performed 5 'airsassinations.'
50 
Terminus
Found all of the Terminals in the Campaign.
50 
Bromageddon
Completed the Campaign cooperatively on Heroic or harder.
40 
Pump Yer Brakes
In Crimson DLC matchmaking, scored the killing blow on a Mantis.
40 
Clay Pigeon
In Crimson DLC matchmaking, shot an enemy who’s airborne from a Man Cannon.
40 
Callin' in the Big Guns
In Majestic DLC matchmaking, called in 3 ordnance drops during the same game.
40 
What Is Yours Is Also Mine
In Castle DLC matchmaking, disabled a vehicle and then hijack it.
40 
Outta My Way!
In Castle DLC matchmaking, killed 5 enemies during a match by running them over.
40 
Pitchin' a Tent
In matchmaking, effectively camped one location without dying for a full 60 seconds.
40 
I Need a Hero
Completed the Campaign on Heroic or harder.
40 
A Legendary Episode
Completed all chapters in Spartan Ops Episode 1 on Legendary difficulty.
40 
Hat Trick
In matchmaking, scored three times in one round of Ricochet.
33 
ODST
In Crimson DLC matchmaking, killed a player while airborne from a Man Cannon.
30 
Special Delivery
In Crimson DLC matchmaking, killed an enemy with melee when landing from a Man Cannon.
30 
Bullet Sponge
In Majestic DLC matchmaking, got the 'Close Call' medal twice during one match.
30 
Flash of Light
In Majestic DLC matchmaking, got a Double Kill or higher with one Pulse Grenade.
30 
Pigs Can Fly
In Majestic DLC matchmaking, kill 3 enemies while they are using Jet Packs.
30 
Hello Nurse!
In Castle DLC matchmaking, healed a near-death teammate with Regen Field 5 times.
30 
That Won't Save You
In Castle DLC matchmaking, assassinated an enemy who is using a Hardlight Shield.
30 
Beating Up the Beat
In Castle DLC matchmaking, performed 5 melee kills in a single match.
30 
Scrapyard
In Castle DLC matchmaking, destroyed 2 vehicles during a single game.
30 
Protect This House
In matchmaking, assassinated the ball carrier within five meters of your own goal in Ricochet.
30 
Hanging on the Combat Deck
Won 20 War Games matchmaking matches.
30 
One Man Army
In matchmaking, got four consecutive kills with the Rocket Launcher without dying.
27 
From Downtown
In matchmaking, scored by throwing the ball from 30 meters in Ricochet.
25 
Repeat Survivor
In matchmaking, survived three vehicle explosions in a row with the Survivor package.
25 
Movin' On Up
Ranked up your Spartan-IV to SR-20.
25 
Knight in White Assassination
Assassinated a Knight in any Spartan Ops mission.
20 
What Power Outage?
Completed Chapter 4, Episode 5 of Spartan Ops without losing a generator on Heroic or harder.
20 
No Easy Way Out
In Ch 1, Ep 5 of Spartan Ops survived the enemy assault during the defense on Normal or harder.
20 
The Challenger
Completed 25 Challenges.
20 
Size is Everything
In Crimson DLC matchmaking, killed 20 enemies with a detached Machine Gun Turret.
20 
Bigfoot
In Crimson DLC matchmaking, killed 20 enemies using the Mantis' stomp attack.
20 
David and Goliath
In Crimson DLC matchmaking, boarded an enemy Mantis.
20 
Last Man Grinning
In Majestic DLC matchmaking, got 4 kills using the SAW without dying.
20 
I Thrust at Thee
In Majestic DLC matchmaking, perform a melee kill right after using Thrust Pack.
20 
Dodge This!
In Castle DLC matchmaking, got two direct Spartan Laser kills in one match.
20 
Sight Seeing
In Castle DLC matchmaking, completed a match in any mode for each Castle map.
20 
Can’t Catch Me
In matchmaking, scored a goal in Ricochet while taking damage with the Resistor active.
20 
Just a Scratch
In matchmaking, recovered full shields from low health with both Resistor and Recharge active.
20 
Got it!
In Bullseye DLC matchmaking, acquired the Rocket Launcher at the start of a match on Pitfall.
20 
Wake Up, John
Completed the Campaign on Normal or harder.
20 
Digging up the Past
Found and accessed Chief's record in mission 1.
20 
Midnight Launch
Got significant air in the Warthog at midnight in mission 2.
20 
This is my Rifle, This is my Gun
Carried a UNSC weapon all the way through mission 3 on Heroic or harder.
20 
Bros to the Close
Completed mission 4 without one preventable Marine death on Heroic or harder.
20 
Mortardom
Stole a Wraith and used it to kill at least four enemy Wraiths in mission 5 on Heroic or harder.
20 
Explore the Floor
Tricked or forced a Hunter to fall to his demise in mission 6.
20 
Give Him the Stick
Took out both Hunters using only the Sticky Detonator in mission 7.
20 
Chief, Smash!
Killed 3 Crawlers in one hit with the Gravity Hammer in mission 8.
20 
Crimson Alone
Completed a Spartan Ops chapter solo on Legendary.
20 
Roses vs Violets
Found one of the RvB Easter Eggs in Episodes 1 to 5 of Spartan Ops.
20 
No One Left Behind
Saved at least one Marine in Chapter 3 of Episode 2 of Spartan Ops on Heroic or harder.
20 
Skullduggery
Completed any Campaign mission with 3 or more Skulls on Heroic or harder.
15 
Not Some Recruit Anymore
Ranked up your Spartan-IV to SR-5.
15 
I <3 Red vs Blue
Won 5 War Games matchmaking matches.
15 
Operation Completion
Completed a Spartan Ops Mission on any difficulty.
15 
The Challenged
Completed a Challenge.
10 
Didn't See It Comin'
In Majestic DLC matchmaking, assassinated an enemy who's in zoom mode.
10 
I See You!
In Majestic DLC matchmaking, killed 5 enemies while Promethean Vision is active.
10 
Clever Girl
In Majestic DLC matchmaking, killed 5 enemies while Active Camo is active.
10 
Ashes to Ashes
In Castle DLC matchmaking, disintegrated 6 enemies using Forerunner weapons.
10 
Shocking
In Bullseye DLC matchmaking, activated both electrical surge systems during a match on Vertigo.
10 
Dawn
Completed mission 1 on any difficulty.
10 
Requiem
Completed mission 2 on any difficulty.
10 
Forerunner
Completed mission 3 on any difficulty.
10 
Infinity
Completed mission 4 on any difficulty.
10 
Reclaimer
Completed mission 5 on any difficulty.
10 
Shutdown
Completed mission 6 on any difficulty.
10 
Composer
Completed mission 7 on any difficulty.
10 
Midnight
Completed mission 8 on any difficulty.
10 
Bropocalypse
Completed any Campaign mission cooperatively on Heroic or harder.
10 
Contact the Domain
Found a Terminal in the Campaign.
10 
Armorer
Changed your Spartan's armor in the Spartan Armor card.
5 
Badge
Changed your Emblem in the Spartan ID card.
5 
PWND
Changed your Service Tag in the Spartan ID card.
5 
What a Poser!
Changed your Spartan's pose in the Spartan ID card.
5 
The Cartographer
Created and saved a Custom Map in Forge.
5 
Game Changer
Created and saved a Custom Game type in War Games.
5 
Snapshot!
Saved a Screenshot from the Theater.
5 
The Director
Saved a Film Clip from the Theater.
5 
Sharing is Caring
Uploaded a File to your File Share.
5