Score 250,000 on a song
Earn a 500 note streak in Career or Quick Play
Earn a 250 note streak in Career or Quick Play
Reached level 5 in multiplayer
Defeated the Lambent Brumak
Completed all acts in Co-op on any difficulty
Completed all campaign acts on Casual Difficulty
Captured a Brumak
Successfully defended COG headquarters
Defeated Skorge and his Hydra
Found the Locust queen
Activated Jack as homing beacon in Nexus
Found Maria
Defeated the Leviathan
Arrived safely at Mount Kadar Stranded camp
Discovered the location of the Locust queen
Recovered 5 of 41 collectibles
Performed a chainsaw multiple bypass
Freed Baird from capture
Completed 10 chapters in Co-op on any difficulty
Watched Ilima sink
Seen the sights with Betty
Escorted Betty to Landown
Mastered the ways of the Active Reload
Successfully defended the hospital
Completed 1 chapter in Co-op on any difficulty
Complete 10 different co-op chapters as Dominic Santiago on any difficulty
Changed your Emblem in the Spartan ID card.
Changed your Service Tag in the Spartan ID card.
Completed mission 1 on any difficulty.
Ranked up your Spartan-IV to SR-5.
Earned an Onyx medal.
Earned the Onyx "War Supporter" medal.
Complete 1 co-op chapter as Dominic Santiago on any difficulty
As a Tank hit 20 Survivors with a car in the Crash Course campaign.
Upgraded a spell or talent.
Anniversary: Earned 3 headshots in a row in a matchmade game.
Turn wheat into bread.
All hail the leader of The Lost!
Learn what it means to be a Scaletta.
Pay a visit to an old friend.
Complete Chapter 13.
Complete Chapter 12.
Complete Chapter 11.
Settle the score with the Irish once and for all.
Help Leo out of a tricky situation without getting caught.
Complete Chapter 10.
Clean up after Joe.
Finish the single player campaign on any difficulty
Complete the single player campaign on Supersoldier