Completed any Campaign mission cooperatively on Heroic or harder.
Completed mission 7 on any difficulty.
10 Contact the Domain
Found a Terminal in the Campaign.
Completed mission 1 on any difficulty.
Completed mission 3 on any difficulty.
Completed mission 4 on any difficulty.
Completed mission 8 on any difficulty.
Completed mission 5 on any difficulty.
Completed mission 2 on any difficulty.
Completed mission 6 on any difficulty.
10 The Challenged
Completed a Challenge.
15 I <3 Red vs Blue
Won 5 War Games matchmaking matches.
15 Not Some Recruit Anymore
Ranked up your Spartan-IV to SR-5.
15 Operation Completion
Completed a Spartan Ops Mission on any difficulty.
Completed any Campaign mission with 3 or more Skulls on Heroic or harder.
20 No One Left Behind
Saved at least one Marine in Chapter 3 of Episode 2 of Spartan Ops on Heroic or harder.
20 Bros to the Close
Completed mission 4 without one preventable Marine death on Heroic or harder.
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 Digging up the Past
Found and accessed Chief's record in mission 1.
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 Knight in White Assassination
Assassinated a Knight in any Spartan Ops mission.
20 Midnight Launch
Got significant air in the Warthog at midnight in mission 2.
Hijacked a Wraith and used it to kill at least four enemy Wraiths in mission 5 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 Roses vs Violets
Found one of the RvB Easter Eggs in Spartan Ops.
20 The Challenger
Completed 25 Challenges.
20 This is my Rifle, This is my Gun
Carried a UNSC weapon all the way through mission 3 on Heroic or harder.
20 Wake Up, John
Completed the Campaign on Normal or harder.
20 What Power Outage?
Completed Chapter 4, Episode 5 of Spartan Ops without losing a generator on Heroic or harder.
25 Movin' On Up
Ranked up your Spartan-IV to SR-20.
30 Hanging on the Combat Deck
Won 20 War Games matchmaking matches.
40 A Legendary Episode
Completed all chapters in Spartan Ops Episode 1 on Legendary difficulty.
Completed the Campaign cooperatively on Heroic or harder.
40 I Need a Hero
Completed the Campaign on Heroic or harder.
Changed your Spartan's armor in the Spartan Armor card.
Changed your Emblem in the Spartan ID card.
5 Game Changer
Created and saved a Custom Game type in War Games.
Changed your Service Tag in the Spartan ID card.
5 Sharing is Caring
Uploaded a File to your File Share.
Saved a Screenshot from the Theater.
5 The Cartographer
Created and saved a Custom Map in Forge.
5 The Director
Saved a Film Clip from the Theater.
5 What a Poser!
Changed your Spartan's pose in the Spartan ID card.
Found all of the Terminals in the Campaign.
70 The Legend of 117
Completed the Campaign on Legendary difficulty.
80 Dedicated to Crimson
Completed all chapters in the first 5 episodes of Spartan Ops on any difficulty.
90 Lone Wolf Legend
Completed the Campaign solo on Legendary difficulty.