50Achievements
This war is over
Completed the Campaign
(15.3%)
It just keeps going
Beat wave 25 in Blitz Firefight
(3.0%)
Wake up
Completed The Signal
(44.6%)
A history of decimation
Completed A New Enemy
(36.7%)
Dominated
Completed Ascension
(30.9%)
Guerilla tactics
Completed One Three Zero
(28.3%)
Stirring the pot
Completed The Cartographer
(26.0%)
All travel is suspended
Completed Lights Out
(23.1%)
Behind enemy lines
Completed From the Deep
(20.8%)
The setup …
Completed Hold the Line
(18.9%)
And the knockout punch
Completed Under the Dark
(17.9%)
Fifth floor: Tools, Guns, Super Weapons
Completed The Foundry
(16.8%)
Sentinel size matters
Completed The Halo
(15.9%)
Last stop, this town
Completed Last Stand
(15.5%)
Learn the ropes
Completed the Basic standalone tutorial
(27.7%)
Know the ropes
Completed the Advanced standalone tutorial
(17.7%)
Two heads are better than one
Completed a mission in co-op
(8.6%)
The hard fight
Completed the Campaign on Heroic
(1.8%)
Surviving the long war
Completed the Campaign on Legendary
(1.1%)
Palmer's Pure Gold
Earned a gold medal on every mission (except Prologue) on any difficulty
(0.3%)
Gold rush
Earned a gold medal on any mission (except Prologue) on any difficulty
(24.7%)
Lone Wolf
Completed any mission (except The Signal) solo on Legendary with all skulls activated
(0.3%)
Comrades in arms
Earned a gold medal on any mission (except Prologue) in Co-op on Legendary
(1.0%)
A little bit extra
Completed half of the Campaign bonus objectives
(6.0%)
A lot extra
Completed all the Campaign bonus objectives
(0.3%)
Alas, poor Yorick!
Collected a Skull
(33.2%)
Morbid curiosities
Collected half of the Skulls
(11.7%)
Collecting a dream
Collected all the Skulls
(1.1%)
The Scrappy Six
Completed a Multiplayer match as each of the 6 launch leaders (Matchmaking only)
(3.2%)
First steps
Completed a Multiplayer match (Matchmaking only)
(21.1%)
Natural intelligence
Played a Skirmish match alone against only AI opponents (1 or more)
(25.3%)
Two heads are better than none
Won a Skirmish match with a friend against only AI opponents (2 or more)
(9.7%)
You've got a case of the Birley
Won a 1v1 Skirmish against Legendary AI after recycling your base in the first 5 minutes
(0.4%)
The rank and file
Recruited or constructed 1 of each UNSC unit in Multiplayer or Skirmish (Launch units only)
(7.7%)
The tribe
Recruited or constructed 1 of each Banished unit in Multiplayer or Skirmish (Launch units only)
(6.1%)
Trash compactor
Destroyed 100 vehicles with anti-vehicle units (Multiplayer, Skirmish or Blitz)
(8.5%)
Flyswatter
Destroyed 100 air units with anti-air units (Multiplayer, Skirmish or Blitz)
(9.5%)
Meat grinder
Killed 100 infantry with anti-infantry units (Multiplayer, Skirmish or Blitz)
(7.6%)
Spare change
Spent 5 Leader Points in Multiplayer or Skirmish
(34.4%)
Big Spender
Spent 100 Leader Points in Multiplayer or Skirmish
(14.1%)
Space Healer
Casted 100 Healing Leader Powers (Multiplayer, Skirmish or Blitz)
(7.2%)
Overkill
Destroyed 500 units with Leader Powers (Multiplayer, Skirmish or Blitz)
(8.7%)
The hand that feeds
Killed a unit owned by a developer or someone who has this achievement
(17.4%)
Making the most of the day
Completed 3 Daily Challenges in one day
(5.6%)
A strong showing for the week
Completed a set of 3 Weekly Challenges in one week
(2.7%)
Short-term commitment
Completed at least 1 Daily Challenge each day for a week
(0.9%)
Long-term commitment
Completed at least 1 Weekly Challenge each week for a month
(1.8%)
Duellist
Won your first Blitz match (Matchmaking only)
(4.9%)
Ante-up
Completed the Blitz tutorial
(13.9%)
Card shark
Completed 25 Blitz matches (Matchmaking only)
(1.1%)