- The Challenger
Completed 25 Challenges.
13 June 2013 - 4 guides
- Midnight
Completed mission 8 on any difficulty.
- Composer
Completed mission 7 on any difficulty.
- Give Him the Stick
Took out both Hunters using only the Sticky Detonator in mission 7.
12 November 2012 - 8 guides
- Shutdown
Completed mission 6 on any difficulty.
12 November 2012 - 3 guides
- Explore the Floor
Tricked or forced a Hunter to fall to his demise in mission 6.
12 November 2012 - 19 guides
- Digging up the Past
Found and accessed Chief's record in mission 1.
11 November 2012 - 14 guides
- Crimson Alone
Completed a Spartan Ops chapter solo on Legendary.
10 November 2012 - 6 guides
- Hanging on the Combat Deck
Won 20 War Games matchmaking matches.
07 November 2012 - 2 guides
- Movin' On Up
Ranked up your Spartan-IV to SR-20.
07 November 2012 - 6 guides
- What a Poser!
Changed your Spartan's pose in the Spartan ID card.
06 November 2012 - 5 guides
- I <3 Red vs Blue
Won 5 War Games matchmaking matches.
06 November 2012 - 3 guides
- Armorer
Changed your Spartan's armor in the Spartan Armor card.
06 November 2012 - 4 guides
- Sharing is Caring
Uploaded a File to your File Share.
06 November 2012 - 4 guides
- The Director
Saved a Film Clip from the Theater.
06 November 2012 - 3 guides
- Snapshot!
Saved a Screenshot from the Theater.
06 November 2012 - 2 guides
- Operation Completion
Completed a Spartan Ops Mission on any difficulty.
- Not Some Recruit Anymore
Ranked up your Spartan-IV to SR-5.
06 November 2012 - 4 guides
- The Challenged
Completed a Challenge.
06 November 2012 - 3 guides
- Forerunner
Completed mission 3 on any difficulty.
- Contact the Domain
Found a Terminal in the Campaign.
06 November 2012 - 3 guides
- Requiem
Completed mission 2 on any difficulty.
- Dawn
Completed mission 1 on any difficulty.
06 November 2012 - 3 guides
- Bropocalypse
Completed any Campaign mission cooperatively on Heroic or harder.
- Badge
Changed your Emblem in the Spartan ID card.
06 November 2012 - 4 guides
- PWND
Changed your Service Tag in the Spartan ID card.
06 November 2012 - 5 guides
- Infinity
Complete mission 4 on any difficulty.
Locked - 2 guides
- Reclaimer
Complete mission 5 on any difficulty.
Locked - 2 guides
- Wake Up, John
Complete the Campaign on Normal or harder.
Locked - 3 guides
- I Need a Hero
Complete the Campaign on Heroic or harder.
Locked - 4 guides
- The Legend of 117
Complete the Campaign on Legendary difficulty.
Locked - 3 guides
- Lone Wolf Legend
Complete the Campaign solo on Legendary difficulty.
Locked - 10 guides
- Skullduggery
Complete any Campaign mission with 3 or more Skulls on Heroic or harder.
Locked - 3 guides
- Terminus
Find all of the Terminals in the Campaign.
Locked - 5 guides
- Midnight Launch
In mission 2, get significant air in the Warthog at midnight.
Locked - 15 guides
- This is my Rifle, This is my Gun
In mission 3, carry a UNSC weapon all the way through on Heroic or harder.
Locked - 9 guides
- Bros to the Close
Complete mission 4 without one preventable Marine death on Heroic or harder.
Locked - 10 guides
- Mortardom
In mission 5, steal a Wraith and use it to kill at least four enemy Wraiths on Heroic or harder.
Locked - 14 guides
- Chief, Smash!
In mission 8, kill 3 Crawlers in one hit with the Gravity Hammer.
Locked - 11 guides
- A Legendary Episode
Complete all chapters in Spartan Ops Episode 1 on Legendary difficulty.
Locked - 2 guides
- Dedicated to Crimson
Complete all chapters in any 5 episodes of Spartan Ops on any difficulty.
Locked - 3 guides
- Roses vs Violets
Find one of the RvB Easter Eggs in Episodes 1 to 5 of Spartan Ops.
Locked - 11 guides
- No One Left Behind
Save at least one Marine in Chapter 3 of Episode 2 of Spartan Ops on Heroic or harder.
Locked - 6 guides
- Knight in White Assassination
Assassinate a Knight in any Spartan Ops mission.
Locked - 7 guides
- What Power Outage?
Complete Chapter 4, Episode 5 of Spartan Ops without losing a generator on Heroic or harder.
Locked - 7 guides
- No Easy Way Out
In Ch 1, Ep 5 of Spartan Ops survive the enemy assault during the defense on Normal or harder.
Locked - 9 guides
- The Cartographer
Create and save a Custom Map in Forge.
Locked - 3 guides
- Game Changer
Create and save a Custom Game type in War Games.
Locked - 4 guides
- Bromageddon
Complete the Campaign cooperatively on Heroic or harder.
Locked - 2 guides
- Callin' in the Big Guns
In Majestic DLC matchmaking, called in 3 ordnance drops during the same game.
09 March 2013 - 8 guides
- Didn't See It Comin'
In Majestic DLC matchmaking, assassinate an enemy who's in zoom mode.
Locked - 3 guides
- Bird of Prey
In Majestic DLC matchmaking, perform 5 'airsassinations.'
Locked - 3 guides
- Bullet Sponge
In Majestic DLC matchmaking, get the 'Close Call' medal twice during one match.
Locked - 3 guides
- I See You!
In Majestic DLC matchmaking, kill 5 enemies while Promethean Vision is active.
Locked - 3 guides
- Clever Girl
In Majestic DLC matchmaking, kill 5 enemies while Active Camo is active.
Locked - 2 guides
- Flash of Light
In Majestic DLC matchmaking, get a Double Kill or higher with one Pulse Grenade.
Locked - 2 guides
- Last Man Grinning
In Majestic DLC matchmaking, get 4 kills using the SAW without dying.
Locked - 3 guides
- Pigs Can Fly
In Majestic DLC matchmaking, kill 3 enemies while they are using Jet Packs.
Locked - 4 guides
- I Thrust at Thee
In Majestic DLC matchmaking, perform a melee kill right after using Thrust Pack.
Locked - 4 guides