Tsantsa
Complete any level with at least three skulls active on Heroic difficulty or higher.
50 ✓ November 20th, 2011
Dear Diary...
Read all of the terminals hidden throughout the campaign.
50 ✓ December 3rd, 2011
Headhunter
Locate all the skulls hidden throughout the campaign.
50 ✓ December 3rd, 2011
Living Legend
Complete every level of the game on Legendary difficulty.
50 ✓ December 3rd, 2011
Bro Hammer
Complete any level on Legendary difficulty cooperatively.
50 ✓ November 19th, 2011
The Silent Cartographer
Complete the level “The Silent Cartographer” on any difficulty.
25 ✓ November 19th, 2011
Assault on the Control Room
Complete the level “Assault on the Control Room” on any difficulty.
25 ✓ November 20th, 2011
Pillar of Autumn
Complete the level “Pillar of Autumn” on any difficulty.
25 ✓ November 15th, 2011
Halo
Complete the level “Halo” on any difficulty.
25 ✓ November 17th, 2011
Truth and Reconciliation
Complete the level “Truth and Reconciliation” on any difficulty.
25 ✓ November 19th, 2011
343 Guilty Spark
Complete the level “343 Guilty Spark” on any difficulty.
25 ✓ November 20th, 2011
The Library
Complete the level “The Library” on any difficulty.
25 ✓ November 20th, 2011
Two Betrayals
Complete the level “Two Betrayals” on any difficulty.
25 ✓ December 3rd, 2011
Keyes
Complete the level “Keyes” on any difficulty.
25 ✓ December 3rd, 2011
The Maw
Complete the level “The Maw” on any difficulty.
25 ✓ December 3rd, 2011
Heavy Reading
Read half the terminals hidden throughout the campaign.
25 ✓ November 20th, 2011
Skulls Taken!
Locate half of the skulls hidden throughout the campaign.
25 ✓ November 19th, 2011
Walk it Off
Complete the level “Pillar of Autumn” on Legendary without picking up a health kit.
25 ✓ November 16th, 2011
How Pedestrian
Complete the level “Halo” on any difficulty without entering a vehicle.
25 ✓ November 18th, 2011
Close Quarters Combat
Complete the level “Truth and Reconciliation” with at least four rounds left in your Sniper Rifle.
25 ✓ November 19th, 2011
I’ll Be Taking That!
Pilot a Banshee on the level “Assault on the Control Room.”
25 ✓ November 20th, 2011
Speed Reader
Complete the level “The Library” on Legendary difficulty in 30 minutes or less.
25 ✓ April 1st, 2012
Leave It Where It Lay
Complete the level “Two Betrayals” on Legendary difficulty without picking up a new weapon.
25 ✓ December 3rd, 2011
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Kill 100 Flood Infection Forms on the level “Keyes” on Heroic difficulty or above.
25 ✓ December 3rd, 2011
Grenadier
Escape the map room in “The Silent Cartographer” without firing a shot on Heroic or Legendary.
25 ✓ November 19th, 2011
Breaking Quarantine
Escape the Forerunner facility on the level “343 Guilty Spark” in 21 minutes or less.
25 ✓ April 1st, 2012
Never Tell Me the Odds
Escape “The Maw” on Legendary with at least a minute left on the count down.
25 ✓ December 3rd, 2011
Believe in a Hero
Complete every level of the game on Heroic difficulty.
20 ✓ December 3rd, 2011
Brovershield
Complete any level on Heroic difficulty cooperatively.
20 ✓ November 19th, 2011
He’s Unstoppable!
Complete any level on Heroic difficulty or higher without taking health damage.
20 ✓ December 4th, 2011
What have we here?
Read a terminal.
10 ✓ November 16th, 2011
Looks like the Oddball
Find your first campaign skull.
10 ✓ November 16th, 2011
Birth of a Spartan
Complete every level of the game on Normal difficulty.
10 ✓ December 3rd, 2011
Standard Operating Brocedure
Complete any level on Normal difficulty cooperatively.
10 ✓ November 19th, 2011
Overshields are for Sissies
Complete the level “Pillar of Autumn” on Legendary without picking up an Overshield.
10 ✓ November 15th, 2011
No-Fly Zone
Destroy three of the four Banshees on “Halo” on any difficulty during a single play-through.
10 ✓ November 17th, 2011
This One's for Jenkins!
Kill 50 Flood Combat Forms on the level “343 Guilty Spark” on Heroic difficulty or higher.
10 ✓ November 20th, 2011
That Just Happened
Complete the level “The Library” on Heroic difficulty or higher without dying.
10 ✓ April 3rd, 2012
Look Out for the Little Guys
Complete the level “Two Betrayals” on Heroic difficulty or higher without killing any Grunts.
10 ✓ December 3rd, 2011
All According to Plan...
Kill all the enemies in the first encounter of “Truth and Reconciliation” without being detected.
10 ✓ November 19th, 2011
Beachhead
Storm the beach of “The Silent Cartographer” with no marine casualties on Heroic or Legendary.
10 ✓ November 19th, 2011
Wraith Hunter
Destroy four Wraith tanks in “Assault on the Control Room” with the Scorpion tank, in a single play.
10 ✓ March 31st, 2012
Tying Up Loose Ends
Kill every Elite on the level “Keyes” on Heroic difficulty or above.
10 ✓ April 3rd, 2012
This Side Up
Complete the Warthog ride on the level “The Maw” without being forcibly ejected from your vehicle.
10 ✓ December 4th, 2011