- Ouroboros
Halo 4: Beat the par time on Infinity.
- Countdown
Halo 4: Beat the par time on Midnight.
- Explore the Floor
Halo 4: Trick or force a Hunter to fall to its demise on Shutdown on Heroic or Legendary.
- You're No Chips
Halo 4: What do Marines know about sticks?
- Terminus
Halo 4: Activate all Halo 4 Terminals.
- Cryptum
Halo 4: Activate Terminal 7 on Midnight.
- Justice
Halo 4: Activate Terminal 6 on Composer.
- Knights
Halo 4: Activate Terminal 5 on Shutdown.
- Shut. Down. Everything.
Halo 4: Beat the par time on Shutdown.
- Lord of Admirals
Halo 4: Activate Terminal 2 on Forerunner.
- A Long Time Ago
Halo 4: Play a game of Halo 4 on the 6th of any month.
- Midnight
Halo 4: Complete Midnight.
- Witching Hour
Halo 4: Beat the par score on Midnight.
- You Had it Coming
Halo 4: Beat the par score on every Halo 4 level.
- Wake Up, John
Halo 4: Complete every level of the game on Normal difficulty.
- I Need a Hero
Halo 4: Complete every level of the game on Heroic difficulty.
- The Legend of 117
Halo 4: Complete every level of the game on Legendary difficulty.
- Lone Wolf Legend
Halo 4: Complete every level of the game on Legendary difficulty, by yourself.
- Librarian's Gift
Halo 4: Complete every level of the game on Easy difficulty.
- Composer
Halo 4: Complete Composer.
- Head Banging
Halo 4: Beat the par score on Composer.
- Shutdown
Halo 4: Complete Shutdown.
- Emergency Shutdown
Halo 4: Beat the par score on Shutdown.
- Reclaimer
Halo 4: Complete Reclaimer.
- Librarian's Pet
Halo 4: Beat the par score on Reclaimer.
- Flood
Halo 4: Activate Terminal 4 on Reclaimer.
- Mortardom
Halo 4: On Reclaimer, use a Wraith to kill at least four enemy Wraiths on Heroic or Legendary.
- Going International
Halo 4: Complete a match on at least 8 different multiplayer maps.
- Taste Test
Halo 4: Complete a match on at least 4 different game types in multiplayer.
- Raging in the Dark
Halo 4: Beat the par time on Forerunner.
- Interloper
Halo 4: Beat the par time on Requiem.
- War
Halo 4: Activate Terminal 1 on Requiem.
- Shadow of Sundered Star
Halo 4: Beat the par score on Forerunner.
- Dark Fortress
Halo 4: Beat the par score on Requiem.
- Piece of Cake
Halo 4: Beat the par time on Dawn.
- Memento Mori
Halo 4: Complete all chapters in Spartan Ops Episode 5.
- Didact's Hand
Halo 4: Complete all chapters in Spartan Ops Episode 4.
- Catherine
Halo 4: Complete all chapters in Spartan Ops Episode 3.
- Artifact
Halo 4: Complete all chapters in Spartan Ops Episode 2.
- Knight in White Assassination
Halo 4: Assassinate a Knight in any Spartan Ops mission.
- Departure
Halo 4: Complete all chapters in Spartan Ops Episode 1.
- Roses vs Violets
Halo 4: Why are you even here?
- Operation Completion
Halo 4: Complete a Spartan Ops mission.
- Infinity
Halo 4: Complete Infinity.
- Jungle Warfare
Halo 4: Beat the par score on Infinity.
- Charum Hakkor
Halo 4: Activate Terminal 3 on Infinity.
- Forerunner
Halo 4: Complete Forerunner.
- This is my Rifle, This is my Gun
Halo 4: Carry a UNSC weapon all the way through Forerunner on Heroic or Legendary.
- Requiem
Halo 4: Complete Requiem.
- Dawn
Halo 4: Complete Dawn.
- Gunslinger
Halo 4: Beat the par score on Dawn.
- Digging up the Past
Halo 4: Access the Master Chief's records on Dawn.
- Gimme That
Halo 4: Beat the par time on Reclaimer.
- Symphony of Pain
Halo 4: Beat the par time on Composer.
- Easy As One Two Three
Halo 4: Beat the par time on all Halo 4 levels.
- Bros to the Close
Halo 4: Complete Infinity without one preventable Marine death on Heroic or Legendary.
- Give Him the Stick
Halo 4: Take out both Hunters using only the Sticky Detonator on Composer.
- Chief, Smash!
Halo 4: Kill 3 Crawlers in one hit with the Gravity Hammer on Midnight.
- You're Joking
Halo 4: Complete all Halo 4 Legendary campaign missions in under 3 hours.
- Naked Tyrant
Halo 4: Complete the Halo 4 LASO Campaign playlist.
Locked - 2 guides
- Devotee
Halo 4: Complete three Halo 4 playlists.
- Chest of Gold
Halo 4: Complete a Halo 4 playlist.
- Scattered
Halo 4: Complete all chapters in Spartan Ops Episode 6.
- Invasion
Halo 4: Complete all chapters in Spartan Ops Episode 7.
- Expendable
Halo 4: Complete all chapters in Spartan Ops Episode 8.
- Key
Halo 4: Complete all chapters in Spartan Ops Episode 9.
- Exodus
Halo 4: Complete all chapters in Spartan Ops Episode 10.
- Feet First
Halo 4: Complete all Spartan Ops chapters.
- Term of Enlistment
Halo 4: Complete all Spartan Ops chapters on Normal difficulty.
- Hazard Pay
Halo 4: Complete all Spartan Ops chapters on Heroic difficulty.
- Icarus
Halo 4: Complete all Spartan Ops chapters on Legendary difficulty.
- Smooth Operator
Halo 4: Complete all Spartan Ops chapters solo on Legendary difficulty.
- No One Left Behind
Halo 4: Save at least one Marine on Hacksaw (Ep.2 Ch.3) of Spartan Ops on Heroic or Legendary.
- What Power Outage?
Halo 4: Complete The Cauldron Base of Spartan Ops without losing a generator on Heroic or Legendary.
- No Easy Way Out
Halo 4: Survive Spartan Miller (Ep.5 Ch.1) of Spartan Ops on Heroic or Legendary.