44Achievements
The Silent Cartographer
Complete the level “The Silent Cartographer” on any difficulty.
(38.7%)
Assault on the Control Room
Complete the level “Assault on the Control Room” on any difficulty.
(32.8%)
Pillar of Autumn
Complete the level “Pillar of Autumn” on any difficulty.
(71.8%)
Halo
Complete the level “Halo” on any difficulty.
(53.0%)
Truth and Reconciliation
Complete the level “Truth and Reconciliation” on any difficulty.
(42.5%)
343 Guilty Spark
Complete the level “343 Guilty Spark” on any difficulty.
(30.5%)
The Library
Complete the level “The Library” on any difficulty.
(28.5%)
Two Betrayals
Complete the level “Two Betrayals” on any difficulty.
(25.3%)
Keyes
Complete the level “Keyes” on any difficulty.
(24.0%)
The Maw
Complete the level “The Maw” on any difficulty.
(22.7%)
Tsantsa
Complete any level with at least three skulls active on Heroic difficulty or higher.
(7.0%)
What have we here?
Read a terminal.
(57.1%)
Heavy Reading
Read half the terminals hidden throughout the campaign.
(14.6%)
Dear Diary...
Read all of the terminals hidden throughout the campaign.
(5.6%)
Looks like the Oddball
Find your first campaign skull.
(36.5%)
Skulls Taken!
Locate half of the skulls hidden throughout the campaign.
(7.5%)
Headhunter
Locate all the skulls hidden throughout the campaign.
(4.5%)
Birth of a Spartan
Complete every level of the game on Normal difficulty.
(15.2%)
Believe in a Hero
Complete every level of the game on Heroic difficulty.
(6.3%)
Living Legend
Complete every level of the game on Legendary difficulty.
(4.1%)
Standard Operating Brocedure
Complete any level on Normal difficulty cooperatively.
(38.3%)
Brovershield
Complete any level on Heroic difficulty cooperatively.
(18.8%)
Bro Hammer
Complete any level on Legendary difficulty cooperatively.
(13.1%)
He’s Unstoppable!
Complete any level on Heroic difficulty or higher without taking health damage.
(3.2%)
Overshields are for Sissies
Complete the level “Pillar of Autumn” on Legendary without picking up an Overshield.
(8.3%)
Walk it Off
Complete the level “Pillar of Autumn” on Legendary without picking up a health kit.
(6.5%)
No-Fly Zone
Destroy three of the four Banshees on “Halo” on any difficulty during a single play-through.
(8.7%)
How Pedestrian
Complete the level “Halo” on any difficulty without entering a vehicle.
(5.6%)
Close Quarters Combat
Complete the level “Truth and Reconciliation” with at least four rounds left in your Sniper Rifle.
(20.4%)
I’ll Be Taking That!
Pilot a Banshee on the level “Assault on the Control Room.”
(23.4%)
This One's for Jenkins!
Kill 50 Flood Combat Forms on the level “343 Guilty Spark” on Heroic difficulty or higher.
(7.3%)
That Just Happened
Complete the level “The Library” on Heroic difficulty or higher without dying.
(1.5%)
Speed Reader
Complete the level “The Library” on Legendary difficulty in 30 minutes or less.
(1.8%)
Look Out for the Little Guys
Complete the level “Two Betrayals” on Heroic difficulty or higher without killing any Grunts.
(1.8%)
Leave It Where It Lay
Complete the level “Two Betrayals” on Legendary difficulty without picking up a new weapon.
(2.4%)
Popcorn.gif
Kill 100 Flood Infection Forms on the level “Keyes” on Heroic difficulty or above.
(6.3%)
All According to Plan...
Kill all the enemies in the first encounter of “Truth and Reconciliation” without being detected.
(5.0%)
Beachhead
Storm the beach of “The Silent Cartographer” with no marine casualties on Heroic or Legendary.
(7.4%)
Grenadier
Escape the map room in “The Silent Cartographer” without firing a shot on Heroic or Legendary.
(3.7%)
Wraith Hunter
Destroy four Wraith tanks in “Assault on the Control Room” with the Scorpion tank, in a single play.
(3.5%)
Breaking Quarantine
Escape the Forerunner facility on the level “343 Guilty Spark” in 21 minutes or less.
(7.7%)
Tying Up Loose Ends
Kill every Elite on the level “Keyes” on Heroic difficulty or above.
(2.5%)
This Side Up
Complete the Warthog ride on the level “The Maw” without being forcibly ejected from your vehicle.
(5.1%)
Never Tell Me the Odds
Escape “The Maw” on Legendary with at least a minute left on the count down.
(2.4%)