- Outskirts
Halo 2: Complete Outskirts.
- Metropolis
Halo 2: Complete Metropolis.
- The Arbiter
Halo 2: Complete The Arbiter.
- Oracle
Halo 2: Complete The Oracle.
- Delta Halo
Halo 2: Complete Delta Halo.
- Regret
Halo 2: Complete Regret.
- Sacred Icon
Halo 2: Complete Sacred Icon.
- Quarantine Zone
Halo 2: Complete Quarantine Zone.
- Gravemind
Halo 2: Complete Gravemind.
- Uprising
Halo 2: Complete Uprising.
- High Charity
Halo 2: Complete High Charity.
- The Great Journey
Halo 2: Complete The Great Journey.
- Don't Hangar Around
Halo 2: Beat the par time on Cairo Station.
- Rooftop Runner
Halo 2: Beat the par time on Outskirts.
- Speeding Ticket
Halo 2: Beat the par time on Metropolis.
- YOLO Strats
Halo 2: Beat the par time on The Arbiter.
- Reed the Strategy
Halo 2: Beat the par time on The Oracle.
- So You Don't Want the Tank?
Halo 2: Beat the par time on Delta Halo.
- I Regret Nothing
Halo 2: Beat the par time on Regret.
- Terminal Velocity
Halo 2: Beat the par time on Sacred Icon.
- Hot Zone
Halo 2: Beat the par time on Quarantine Zone.
- Force of Will
Halo 2: Beat the par time on Gravemind.
- No Man's Land
Halo 2: Beat the par time on Uprising.
- Feeling Charitable
Halo 2: Beat the par time on High Charity.
- Are We There Yet?
Halo 2: Beat the par time on The Great Journey.
- Going Nowhere Fast
Halo 2: Beat par time on all Halo 2 levels.
- Bomb Squad
Halo 2: Beat the par score on Cairo Station.
- Objective Secured
Halo 2: Beat the par score on Outskirts.
- Ripple Fire
Halo 2: Beat the par score on Metropolis.
- Heresy Will Not Stay My Feet
Halo 2: Beat the par score on The Arbiter.
- Leave None Alive
Halo 2: Beat the par score on The Oracle.
- Boundless
Halo 2: Beat the par score on Delta Halo.
- Fists of Fury
Halo 2: Beat the par score on Regret.
- Guided Tour
Halo 2: Beat the par score on Sacred Icon.
- The Doctor Is In
Halo 2: Beat the par score on Quarantine Zone.
- Official Business
Halo 2: Beat the par score on Gravemind.
- The Hype Is Real
Halo 2: Beat the par score on Uprising.
- Scorched Earth
Halo 2: Beat the par score on High Charity.
- Frequent Flyer Miles
Halo 2: Beat the par score on The Great Journey.
- Arcade Owner
Halo 2: Beat the par score on every Halo 2 level.
- Curious
Halo 2: Activate Terminal 1 on Cairo Station.
- Inquisitive
Halo 2: Activate Terminal 2 on Outskirts.
- Examiner
Halo 2: Activate Terminal 3 on Metropolis.
- Inspector
Halo 2: Activate Terminal 4 on The Arbiter.
- Fascinated
Halo 2: Activate Terminal 5 on The Oracle.
- Enchanted
Halo 2: Activate Terminal 6 on Delta Halo.
- Enamored
Halo 2: Activate Terminal 7 on Regret.
- Determined
Halo 2: Activate Terminal 8 on Sacred Icon.
- Delighted
Halo 2: Activate Terminal 9 on Quarantine Zone.
- Knowledgable
Halo 2: Activate Terminal 10 on Gravemind.
- Scholar
Halo 2: Activate Terminal 11 on Uprising.
- Reviewer
Halo 2: Activate Terminal 12 on High Charity.
- Obsessed
Halo 2: Activate Terminal 13 on The Great Journey.
- Walking Encyclopedia
Halo 2: Activate all Halo 2 Terminals.
- Skulltaker Halo 2: That's Just…Wrong
Halo 2: Find and claim the That's Just...Wrong Skull on Legendary.
- Skulltaker Halo 2: Thunderstorm
Halo 2: Find and claim the Thunderstorm Skull on Legendary.
- Skulltaker Halo 2: Blind
Halo 2: Find and claim the Blind Skull.
- Skulltaker Halo 2: IWHBYD
Halo 2: Find and claim the IWHBYD Skull on Legendary.
- Skulltaker Halo 2: Catch
Halo 2: Find and claim the Catch Skull on Legendary.
- Skulltaker Halo 2: Grunt Birthday Party
Halo 2: Find and claim the Grunt Birthday Party Skull on Legendary.
- Skulltaker Halo 2: Famine
Halo 2: Find and claim the Famine Skull on Legendary.
- Skulltaker Halo 2: Envy
Halo 2: Find and claim the Envy Skull on Legendary.
- Skulltaker Halo 2: Assassins
Halo 2: Find and claim the Assassins Skull on Legendary.
- Skulltaker Halo 2: Mythic
Halo 2: Find and claim the Mythic Skull on Legendary.
- Skulltaker Halo 2: Sputnik
Halo 2: Find and claim the Sputnik Skull on Legendary.
- Skulltaker Halo 2: Anger
Halo 2: Find and claim the Anger Skull on Legendary.
- Skulltaker Halo 2: Ghost
Halo 2: Find and claim the Ghost Skull on Legendary.
- Skulltaker Halo 2: Iron
Halo 2: Find and claim the Iron Skull on Legendary.
- Skulltaker Halo 2: Black Eye
Halo 2: Find and claim the Black Eye Skull on Legendary.
- Trophy Collector
Halo 2: Find and claim all Skulls in Halo 2.
- And So It Begins...
Halo 2: Collect the Master Chief toy in Delta Halo.
- Regrettable Turn of Events
Halo 2: Collect the Prophet of Regret toy in Regret.
- The Will of the Prophets
Halo 2: Collect the Arbiter toy in Sacred Icon.
- Chieftain of the Brutes
Halo 2: Collect the Tartarus toy in Quarantine Zone.
- Don't Make a Girl a Promise
Halo 2: Collect the Cortana toy in Gravemind.
- My Work is Done
Halo 2: Collect the Librarian toy in Uprising.
- I Like Crazy
Halo 2: Collect the Rampant Cortana toy in High Charity.
- Pyrrhic Solution
Halo 2: Collect the Didact toy in The Great Journey.
- Toybox
Halo 2: Collect all eight Halo toys.
- Warrior
Halo 2: Complete every level of the game on Normal difficulty.
- Hero
Halo 2: Complete every level of the game on Heroic difficulty.
- Legendary Anniversary
Halo 2: Complete every level of the game on Legendary difficulty.
- Seconds
Halo 2: Complete a Halo 2 playlist.
- Connoisseur
Halo 2: Complete three Halo 2 playlists.
- Six Pedals, Four Directions
Halo 2: Drive a Scorpion while playing as the Arbiter.
- Betcha can't stick it...
Halo 2: Stick a Plasma Grenade to a Stealth Elite on Outskirts.
- Cowardly Grunt
Halo 2: Listen to the Cowardly Grunt's woes.
- Siege of Ivory Tower
Halo 2: Listen to a hidden music cue in Halo 2.
- Rex Sword
Halo 2: Grab the energy sword on the level Outskirts.
- 10 Minutes Too Early
Halo 2: In The Oracle, find the holo-drone before the Heretic Leader activates it.
- HI BEN
Halo 2: Oh, hi!
- Animal Habitat
Halo 2: Spot the hippo on the walls of Headlong in classic multiplayer.
- Sid Graffiti
Halo 2: Spot the Sid graffiti on the walls of Coagulation in classic multiplayer.
- E E E
Halo 2: View both signs in the level Metropolis.
- Why So Serious
Halo 2: View the smiling face in the classic multiplayer map Coagulation.
- Why Am I Here?
Halo 2: View this hidden message on the classic Beaver Creek map.
- GOOOAAAAALLLL!
Halo 2: Shoot the soccer ball in the level Metropolis.
- Needs More Whammy Bar
Halo 2: Complete the level Regret with the Prophet Birthday Skull activated.
- Like Peanut Butter and Chocolate
Halo 2: Complete a level in co-op on Heroic or Legendary with the Masterblaster Skull active.
- Starved For Shields
Halo 2: Complete a level with only the Streaking Skull active on Heroic or Legendary.
- Commuter
Halo 2: Complete Metropolis without entering a vehicle on Heroic or Legendary.
- He Never Gets Me Anything
Halo 2: Complete Delta Halo without entering a vehicle on Heroic or Legendary.
- Scarab Lord
Halo 2: Acquire the Scarab Gun.
- Silent but Deadly
Halo 2: Kill 7 opponents from behind in a row without being spotted.
- Demon
Halo 2: Complete any campaign level without dying on Normal or harder.
- Go Ape Shiv
Halo 2: Kill an enraged, berserk Brute using melee.
- Grand Theft Halo
Halo 2A MP: In one match, steal a total of 5 occupied vehicles from opponents.
- Tour of Duty
Halo 2A MP: Complete a game in every one of the 6 updated Anniversary MP maps.
- Double Down
Halo 2A MP: In Anniversary multiplayer, receive 2 or more Double Kill medals.
- Warden
Halo 2 MP: In Classic or Anniversary matchmaking, stop the killing spree of another player.
- Blown Out of the Sky
Halo 2A MP: Blow up the Banshee or Hornet in flight while piloted, with the Rocket Launcher.
- Decorated Warrior
Halo 2A MP: Get awarded at least 10 different medals in one multiplayer game.
- Ninja Redux
Halo 2A MP: Kill 5 people with melee from behind in Anniversary matchmaking.
- Flaming Ninja Anniversary
Halo 2A MP: Kill an opponent that has the Ninja Redux achievement in Anniversary matchmaking.
- Legend Slayer
Halo 2A MP: Kill an opponent that has the Legendary Anniversary achievement.
- Back At It
Halo 2: Play a game of Halo 2 Anniversary on the 9th of any month.
- Back for More
Halo 2: Complete the LASO campaign playlist.
- Monopolized
Halo 2: Complete all Halo 2 Legendary campaign missions in under 3 hours.
- He's Running a Marathon...
Halo 2: Spot the developer in the opening cutscene of Gravemind on Legendary in Classic Mode.
- Destination Vacation
Halo 2: View one of the seasonal signs on Zanzibar in classic multiplayer.
- Tighten Up The Graphics
Halo 2: Complete every level of Halo 2 having seen it in both classic and remastered mode.
- The Return of Megg
Halo 2: She's not picking up.
- Eminent Domain
Halo 2A MP: In Territories, control any 3 Territories simultaneously for 30 seconds.
- Gate Your Thirst!
Halo 2A MP: Found and destroyed the BLAST soda can on Stonetown.
- High Altitude Thirst!
Halo 2A MP: Found and destroyed the BLAST soda can on Zenith.
- Invaders Repelled
Halo 2A MP: In King of the Hill, kill 5 opponents within your controlled hill.
- Power Play
Halo 2A MP: On Warlord, get 5 active camouflage power ups in a single game.
- Put Up Your Dukes
Halo 2A MP: Get 25 melee kills in multiplayer.
- Red vs. Blue
Halo 2A MP: Win 10 matches on Bloodline in multiplayer.
- Rule Your Thirst!
Halo 2A MP: Found and destroyed the BLAST soda can on Warlord.
- Shields Up!
Halo 2A MP: On Zenith, personally activate the center energy shield 3 times in one matchmade game.
- Shook the Hornet's Nest
Halo 2A MP: Get 30 kills with the Hornet in multiplayer.
- Skeet Shooter
Halo 2A MP: Killed 15 opponents that were airborne from a Man Cannon.
- Stayin' Alive
Halo 2A MP: In Juggernaut, survive as the Juggernaut for 30 seconds.
- The Goose is Loose
Halo 2A MP: Get 25 kills with the Gungoose in multiplayer.
- Thirst Locked Down!
Halo 2A MP: Found and destroyed the BLAST soda can on Lockdown.
- Top Gungoose
Halo 2A MP: Get a kill with the Gungoose while airborne.
- BLASTacular!
Halo 2A MP: Destroyed all the Halo 2 Anniversary Multiplayer BLAST soda cans.
- Bloody Thirsty!
Halo 2A MP: Found and destroyed the BLAST soda can on Bloodline.
- Bombing Run
Halo 2A MP: In Assault, take, plant, and score from the bomb spawn without dying or dropping it.
- Cold as Ice
Halo 2A MP: On Lockdown, kill an opponent with the hanging ice.
- Cold Fusion
Halo 2A MP: Kill an opponent by detonating a Fusion Coil.
- Counter-Sniped
Halo 2A MP: With a Sniper Rifle or Beam Rifle kill an enemy that was zoomed in.
- Triple Threat
Halo 2A MP: In Ricochet, pass once, score once, and kill at least one enemy in the same match.
- Wetwork
Halo 2A MP: On Shrine in CTF, activate the enemy base waterfall and, before it stops, grab the flag.
- Worship Your Thirst!
Halo 2A MP: Found and destroyed the BLAST soda can on Shrine.
- Zealot
Halo 2A MP: In Anniversary matchmaking, win 10 games as an Elite.
- Dirty Bird
Halo 2: Fly the Heretic Banshee.
- Big Green Style
Halo 2: Complete every level of the game on Easy difficulty.
- MVP
Halo 2A MP: Finished as the top player on the winning team in a matchmade game.
- Roadkill Rampage
Halo 2A MP: In Anniversary matchmaking, earn a total of 100 Splatter medals.
- Rock and Coil Hit Back
Halo 2A MP: In Anniversary matchmaking, earn a total of 100 Environmentalist medals.
- Tourist
Halo 2: Complete a match on at least 8 different classic multiplayer maps.
- Window Shopping
Halo 2: Complete a match on at least 4 different game types in classic multiplayer.
- Monumental Thirst!
H2A: Found and destroyed the BLAST soda can on Remnant..
- Cairo Station
Halo 2: Complete Cairo Station.
- THE Chips Dubbo?
Halo 2: Fight alongside the legendary Chips Dubbo and listen to his words.