Complete Mission 1 on any difficulty.
Complete Mission 2 on any difficulty.
Complete Mission 3 on any difficulty.
Complete Mission 4 on any difficulty.
Complete Mission 5 on any difficulty.
Complete Mission 6 on any difficulty.
Complete Mission 7 on any difficulty.
Complete Mission 8 on any difficulty.
Wake up John
Complete the Campaign on Normal or harder.
I Need a Hero
Complete the Campaign on Heroic or harder.
The Legend of 117
Complete the Campaign on Legendary difficulty.
Lone Wolf Legend
Complete the Campaign solo on Legendary difficulty.
Complete any Campaign mission with 3 or more Skulls on Heroic or harder.
Complete any Campaign mission co-operatively on Heroic or harder.
Complete the Campaign co-operatively on Heroic or harder.
Contact the Domain
Find a Terminal in the Campaign.
Find all of the Terminals in the Campaign.
Digging up the Past
In Mission 1, find and access Chief's record.
In Mission 2, get significant air in the Warthog at midnight.
This is my Rifle, this is my Gun
In Mission 3, carry a UNSC weapon all the way through on Heroic or harder.
Bros to the Close
Make it through Mission 4 without one preventable Marine death on Heroic or harder.
In Mission 5, hijack a Wraith and use it to kill at least four enemy Wraiths on Heroic or harder.
Explore the Floor
In Mission 6, trick or force a Hunter to fall to his demise.
Give Him the Stick
In Mission 7 in solo Campaign, take out both Hunters using only the Sticky Detonator.
In Mission 8, kill 3 Crawlers in one hit with the Gravity Hammer.
Not Some Recruit Anymore
Rank up your Spartan-IV to SR-5.
Movin' on Up
Rank up your Spartan-IV to SR-20.
I <3 Red vs Blue
Win 5 War Games matchmaking matches.
Win 20 War Games matchmaking matches.
Complete a Spartan Ops Mission on any difficulty.
A Legendary Episode
Complete all chapters in Spartan Ops Episode 1 on Legendary difficulty.
Dedicated to Crimson
Complete all chapters in the first 5 episodes of Spartan Ops on any difficulty.
Complete a Spartan Ops chapter solo on Legendary.
Roses vs Violets
Find one of the RvB Easter Eggs in Spartan Ops.
Save at least one Marine in Chapter 3 of Episode 2 of Spartan Ops on Heroic or harder.
Knight in White Assassination
Assassinate a Knight in any Spartan Ops mission.
What Power Outage?
Complete Chapter 4, Episode 5 of Spartan Ops without losing a generator on Heroic or harder.
No Easy Way Out
In Ch 1, Ep 5 of Spartan Ops survive all enemy waves during the defense on Normal or harder.
Complete a Challenge.
Complete 25 Challenges.
Change your Spartan's armor in the Spartan Armor card.
Change your Emblem in the Spartan ID card.
Change your Service Tag in the Spartan ID card.
What a Poser!
Change your Spartan's pose in the Spartan ID card.
Create and save a Custom Map in Forge.
Create and save a Custom Game type in War Games.
Save a Screenshot from the Theater.
Save a Film Clip from the Theater.
Sharing is Caring
Upload a File to your File Share.