Halo: The Master Chief Collection

Halo 2: In The Oracle, find the holo-drone before the Heretic Leader activates it.

Halo CE: Complete 343 Guilty Spark.

Collect 3,000 campaign or playlist medals.

Halo CE: Play Halo: CE on the 15th of any month.

H3: ODST: Find the 22nd Audio Log.

Collect 5,000 campaign or playlist medals.

Halo 3: Complete three Halo 3 playlists.

Halo CE: Complete a Halo: CE playlist.

Collect 4,000 campaign or playlist medals.

Earn a total of 2,500 Headshot medals in multiplayer.

Halo CE: Launch a Warthog for at least 5 seconds and have it splatter an enemy.

Halo CE: Kill the first group of enemies on The Truth and Reconciliation without being detected.

H3: ODST: Find the 15th Audio Log.

Collect 1,000 campaign or playlist medals.

Halo CE: Beat the par time on The Maw.

Halo 4: Play a game of Halo 4 on the 6th of any month.

Halo: Reach: Complete every level of the game on Legendary difficulty, by yourself.

H3: ODST: Beat the par time on Kizingo Blvd.

Halo 2: Collect the Master Chief toy in Delta Halo.

H3: ODST: Find the 2nd Audio Log.

Halo 2: Spot the hippo on the walls of Headlong in classic multiplayer.

Halo 3: Complete Halo on 4-player Legendary co-op, with Iron Skull, and everyone in Ghosts.

Collect 2,000 campaign or playlist medals.

H3: ODST: Beat the par time on ONI Alpha Site.

Halo 3: Complete the Halo 3 LASO Campaign playlist.

Halo 2: Beat the par score on every Halo 2 level.

H3: ODST: Find the 26th Audio Log.

Halo 2: Beat the par time on The Great Journey.

Halo CE: Activate Terminal 1 on The Pillar of Autumn.

Halo 4: Complete all chapters in Spartan Ops Episode 2.

Halo 3: Beat the par score on The Storm.

Halo 3: Complete The Storm.

Halo CE: Complete Assault on the Control Room.

Halo: Reach: Find Data Pad 18 on The Pillar Of Autumn on Legendary difficulty

Halo 3: Find the hidden Skull on the Assembly multiplayer map.

H3: ODST: Find the 18th Audio Log.

H3: ODST: Find the 30th Audio Log.

H3: ODST: Find the 7th Audio Log.

Halo 3: Activate Terminal 6 on The Covenant.

Halo 2: Play a game of Halo 2 Anniversary on the 9th of any month.

Halo 2: Complete the LASO campaign playlist.

Halo CE: Play a CTF custom game on Blood Gulch with 4 players on the same console. Tri-tip optional.

Halo: Reach: Beat the par score on Tip of the Spear.

Kill 100 Grunts.

Win 250 multiplayer games.

Halo CE: Storm The Silent Cartographer beach with no Marine casualties on Heroic or Legendary.

Halo CE: Activate Terminal 6 on 343 Guilty Spark.

Halo: Reach: Complete a Legendary campaign mission with 3 or more skulls enabled (Scoring Only).

Halo CE: Complete every level of the game having seen it in both classic and remastered mode.

Halo 3: Activate Terminal 3 on The Ark.

Halo 3: On Tsavo Highway, complete the level without entering a vehicle.

Halo CE: Complete every level of the game on Heroic difficulty.

Halo 2: Stick a Plasma Grenade to a Stealth Elite on Outskirts.

Halo 3: Beat the par score on every Halo 3 level.

Halo 2: Complete every level of the game on Easy difficulty.

Complete 400 missions or multiplayer games.

H3: ODST: Beat the par time on Tayari Plaza.

H3: ODST: Earn a Triple Kill medal with the pistol on any level.

Halo CE: Complete every level of the game on Normal difficulty.

Kill a 343 developer in matchmaking or someone who has this achievement.

H3: ODST: Destroy 5 Phantoms on NMPD HQ.

H3: ODST: Swap Dare's pistol for a Rocket Launcher on Coastal Highway.

Halo 2A MP: Destroyed all the Halo 2 Anniversary Multiplayer BLAST soda cans.

H3: ODST: Find the 4th clue unraveling the mystery.

Halo 2A MP: Found and destroyed the BLAST soda can on Bloodline.

Halo 2A MP: Blow up the Banshee or Hornet in flight while piloted, with the Rocket Launcher.

Halo 2A MP: In Assault, take, plant, and score from the bomb spawn without dying or dropping it.

Halo 2: Beat the par score on Cairo Station.

Complete 200 missions or multiplayer games.

Halo 3: Complete a Halo 3 playlist.

Halo 2: Beat the par score on Delta Halo.

Halo 3: Find all the hidden multiplayer Skulls.

Complete any co-op level on Legendary difficulty.

Halo 4: Complete Infinity without one preventable Marine death on Heroic or Legendary.

Complete any co-op level on Heroic difficulty.

Halo 2: Complete Cairo Station.

Halo: Reach: Find all Data Pads.

Complete 300 missions or multiplayer games.

Halo 3: Fight alongside and listen to The Man. The Legend. Chips Dubbo.

Complete 150 missions or multiplayer games.

H3: ODST: Beat par time on all Halo 3: ODST levels.

Halo: Reach: Create a custom map using Forge World.

H3: ODST: Kill 5 sleeping Grunts on Mombasa Streets.

H3: ODST: Find the 28th Audio Log.

Earn a total of 500 Grenade Kill or Plasma Kill medals in matchmade games.

Halo 4: Complete all chapters in Spartan Ops Episode 3.

Halo 3: Beat the par score on Tsavo Highway.

Halo CE: Beat the par score on The Silent Cartographer.

Halo 4: Activate Terminal 3 on Infinity.

Halo CE: Complete a match on at least 4 unique game types.

Kill 100 Watchers.

Halo 4: Complete a Halo 4 playlist.

Collect 7,000 campaign or playlist medals.

Halo 4: Kill 3 Crawlers in one hit with the Gravity Hammer on Midnight.

Halo 2: Collect the Tartarus toy in Quarantine Zone.

Halo: Reach: Kill 1000 Skirmishers.

Halo CE: Beat the par score on 343 Guilty Spark.

Halo 3: Find the hidden Skull on the Citadel multiplayer map.

H3: ODST: Finish any level solo on Legendary, with no shots fired or grenades thrown.

Halo: Reach: Complete Exodus without using any armor abilities.

Halo 3: Complete Floodgate.

Halo: Reach: Pad on the run.

Halo CE: Complete The Truth and Reconciliation with at least four rounds left in your Sniper Rifle.

H3: ODST: Complete Coastal Highway.

Halo 2A MP: On Lockdown, kill an opponent with the hanging ice.

Halo 2A MP: Kill an opponent by detonating a Fusion Coil.

Halo: Reach: See, he IS in the game!

Complete 350 missions or multiplayer games.

Halo 2: Complete Metropolis without entering a vehicle on Heroic or Legendary.

Halo 4: Complete Composer.

Halo: Reach: Trigger a humorous callout on your HUD's position indicator.

Halo 2: Complete three Halo 2 playlists.

H3: ODST: Find the 24th Audio Log.

Halo CE: Beat the par score on The Maw.

Win 50 multiplayer games.

Halo 3: Listen to the story of the Final Grunt.

Halo 4: Beat the par time on Midnight.

Halo 2A MP: With a Sniper Rifle or Beam Rifle kill an enemy that was zoomed in.

Halo 2: Listen to the Cowardly Grunt's woes.

Halo 4: Activate Terminal 7 on Midnight.

Halo 2: Activate Terminal 1 on Cairo Station.

Halo: Reach: Find Data Pad 16 on New Alexandria on Legendary difficulty

Halo 3: Beat the par time on Floodgate.

Kill 1000 Brutes.

Halo 4: Beat the par score on Requiem.

H3: ODST: Complete Data Hive.

Halo 4: Complete Dawn.

Halo CE: Activate all Halo: CE Terminals.

Halo 2A MP: Get awarded at least 10 different medals in one multiplayer game.

H3: ODST: Complete any level without activating VISR mode.

H3: ODST: Complete Coastal Highway on 4-player Legendary co-op, with Iron, and no 'Hog or Scorpion.

Kill 100 Flood.

Halo 2: Activate Terminal 9 on Quarantine Zone.

Halo 2: Complete Delta Halo.

Halo 2: Complete any campaign level without dying on Normal or harder.

Halo 4: Complete all chapters in Spartan Ops Episode 1.

Halo 2: View one of the seasonal signs on Zanzibar in classic multiplayer.

Halo 2: Activate Terminal 8 on Sacred Icon.

Halo 3: Complete all Halo 3 Legendary campaign missions in under 3 hours.

Halo 4: Complete three Halo 4 playlists.

Halo 4: Complete all chapters in Spartan Ops Episode 4.

Halo CE: Beat the par time on The Pillar of Autumn.

Halo CE: Beat par time on all Halo: CE levels.

Halo: Reach: Encounter the hidden marines on Exodus.

Halo 4: Access the Master Chief's records on Dawn.

Halo: Reach: Find Data Pad 9 on The Pillar Of Autumn

Earn a total of 250 Beat Down medals in multiplayer.

Halo 3: Trigger the hidden music cue in Halo 3.

Halo 2: Fly the Heretic Banshee.

H3: ODST: Destroy a Wraith…with your bare hands.

Kill 1000 Crawlers.

Earn a total of 100 Legendary medals in matchmade games.

Halo 2: Beat the par time on Cairo Station.

Halo 2: Collect the Cortana toy in Gravemind.

H3: ODST: Beat the par score on Uplift Reserve.

H3: ODST: Find the 4th Audio Log.

Halo 2A MP: In Anniversary multiplayer, receive 2 or more Double Kill medals.

H3: ODST: Beat the par time on Coastal Highway.

Earn a total of 250 Double Kill medals in matchmade games.

H3: ODST: Play a game of Halo 3: ODST on the 22nd of any month.

Halo: Reach: Complete New Alexandria.

H3: ODST: Find the 16th Audio Log.

Halo 4: Beat the par time on all Halo 4 levels.

Halo: Reach: Access hidden UNSC radio chatter.

H3: ODST: Find the 6th Audio Log.

Halo 2: View both signs in the level Metropolis.

Halo 3: View 2 different sigils on Valhalla.

Halo 4: Beat the par score on Shutdown.

Halo 2A MP: In Territories, control any 3 Territories simultaneously for 30 seconds.

Halo 2: Activate Terminal 7 on Regret.

Halo 2: Activate Terminal 6 on Delta Halo.

Halo: Reach: Complete a Firefight set on Normal or Harder.

Halo 2: Activate Terminal 3 on Metropolis.

Halo CE: Complete three Halo: CE playlists.

Halo 4: Complete all chapters in Spartan Ops Episode 10.

Halo 4: Complete all chapters in Spartan Ops Episode 8.

Halo 4: Trick or force a Hunter to fall to its demise on Shutdown on Heroic or Legendary.

Halo 3: Beat the par score on Floodgate.

Halo 2: Activate Terminal 5 on The Oracle.

H3: ODST: Splatter 7 enemies with a Banshee on Kikowani Station.

Halo: Reach: Beat par time on all Halo: Reach levels.

Halo 2: Beat the par time on High Charity.

H3: ODST: Beat the par time on Kikowani Station.

Halo CE: Complete a level without jumping.

Halo 4: Complete all Spartan Ops chapters.

Halo 3: Complete every level of the game on Legendary difficulty.

H3: ODST: Kill a Drone with a flame grenade on Data Hive.

H3: ODST: Complete every level of the game on Heroic difficulty.

H3: ODST: Beat the par time on NMPD HQ.

Halo 2: Beat the par score on Regret.

Halo 2A MP: Kill an opponent that has the Ninja Redux achievement in Anniversary matchmaking.

Halo 3: Listen to the tale of a young Grunt named Flipyap.

Halo 4: Activate Terminal 4 on Reclaimer.

H3: ODST: Beat the par time on Uplift Reserve.

Halo CE: Beat the par time on Halo.

Halo: Reach: Find the hidden Banshees on The Package.

Kill 5,000 enemies or players.

Halo: Reach: Complete every level of the game on Heroic difficulty.

Halo 2: Beat the par time on Gravemind.

Halo 4: Complete Forerunner.

Win 100 multiplayer games.

Halo: Reach: Flip the switches to become a Reach Racer!

H3: ODST: Kill 3 Jetpack Brutes with a shotgun on Oni Alpha Site.

Halo 2: Beat the par score on The Great Journey.

Halo: Reach: Find me in the club.

Halo: Reach: Kill 10 enemies while using a Jetpack.

Created and saved 5 Custom Game types.

Complete 50 missions or multiplayer games.

Halo 2A MP: Found and destroyed the BLAST soda can on Stonetown.

Halo: Reach: Beat the par time on Tip of the Spear.

H3: ODST: Find the 13th Audio Log.

Halo CE: Ride in a Pelican for several seconds on the level 343 Guilty Spark.

Halo CE: Beat the par score on Halo.

Halo 4: Beat the par time on Reclaimer.

H3: ODST: Find the 12th Audio Log.

Halo 4: Take out both Hunters using only the Sticky Detonator on Composer.

Halo 2: Kill an enraged, berserk Brute using melee.

Halo CE: Halo CE: Complete all Halo: CE Legendary campaign missions in under 3 hours.

Halo 3: Beat the par time on Halo.

Halo: Reach: Complete every level of the game on Legendary difficulty.

Kill 100 Brutes.

Halo 4: Complete a match on at least 8 different multiplayer maps.

Halo 2: Beat par time on all Halo 2 levels.

Halo 2: Shoot the soccer ball in the level Metropolis.

Halo 2A MP: In one match, steal a total of 5 occupied vehicles from opponents.

Halo 2: Complete Gravemind.

Halo CE: Complete every level of the game on Easy difficulty.

Kill 1000 Grunts.

Halo 3: Beat the par score on Sierra 117.

Halo 2: Beat the par score on Sacred Icon.

H3: ODST: Find the 3rd clue unraveling the mystery.

Halo 4: Beat the par score on Dawn.

Halo CE: Complete Halo.

H3: ODST: Find the 11th Audio Log.

Halo 3: Find a lonely missing link.

Halo 4: Complete all Spartan Ops chapters on Heroic difficulty.

Halo: Reach: Party with the DJ Brute.

Halo 4: Beat the par score on Composer.

Halo CE: Find and claim all Skulls in Halo: CE.

Halo 3: Destined for greatness.

Halo CE: Beat the par score on Keyes.

H3: ODST: Find the 5th Audio Log.

Halo 2: Complete Delta Halo without entering a vehicle on Heroic or Legendary.

Complete all campaigns on Easy difficulty.

Halo 2: Beat the par score on The Arbiter.

Halo 3: Find the hidden Skull on the Heretic multiplayer map.

Halo 2: Complete every level of the game on Heroic difficulty.

Halo 2: Spot the developer in the opening cutscene of Gravemind on Legendary in Classic Mode.

Halo CE: Complete any level on Heroic difficulty or higher without taking health damage.

Halo: Reach: Find Data Pad 1 on Winter Contingency

Halo 2: Oh, hi!

Halo 2A MP: Found and destroyed the BLAST soda can on Zenith.

Halo 2: Complete High Charity.

Halo 3: Beat the par time on Tsavo Highway.

Halo 3: Who DARED to discard this brave animal?

Halo CE: Activate Terminal 5 on Assault on the Control Room.

Halo CE: Beat the par time on The Silent Cartographer.

Halo 3: Complete Crow's Nest.

Halo 2: Beat the par time on Quarantine Zone.

Halo: Reach: Beat the par score on The Package.

Halo CE: Complete Halo without entering a vehicle.

Kill 50 Hunters.

Halo 4: Complete all Spartan Ops chapters on Legendary difficulty.

Halo: Reach: Beat the par score on Winter Contingency.

Complete one cross-game playlist.

Halo: Reach: Kill 3 of the anti-aircraft batteries during New Alexandria.

Halo CE: Activate Terminal 4 on The Silent Cartographer.

Complete 100 missions or multiplayer games.

Halo 2: Collect the Rampant Cortana toy in High Charity.

H3: ODST: Beat the par score on ONI Alpha Site.

Halo: Reach: Find the hidden binary signature.

Halo 4: Complete every level of the game on Heroic difficulty.

Halo: Reach: Complete Nightfall.

Halo 4: Complete Infinity.

Halo: Reach: Find Data Pad 6 on Exodus

Win 200 multiplayer games.

Halo 2: Activate Terminal 2 on Outskirts.

Halo: Reach: Beat the par score on Long Night of Solace.

Halo 2: Activate Terminal 4 on The Arbiter.

Halo 4: Beat the par time on Requiem.

Halo: Reach: Complete Exodus.

Halo 3: Activate Terminal 2 on The Ark.

Halo 2A MP: In King of the Hill, kill 5 opponents within your controlled hill.

Halo 4: Complete all chapters in Spartan Ops Episode 7.

H3: ODST: Find the 2nd clue to unraveling the mystery.

Halo 2: Beat the par time on Regret.

Halo CE: Beat the par score on Two Betrayals.

Kill 100 Knights.

Halo: Reach: Use a Pelican turret.

Halo 4: Beat the par score on Infinity.

H3: ODST: Find the 1st clue to unraveling the mystery.

Collect 500 campaign or playlist medals.

Halo 3: Complete a match on at least 4 different game types in multiplayer.

Kill 100 enemies or players.

Halo 4: Activate Terminal 6 on Composer.

Halo: Reach: Beat the par time on ONI: Sword Base.

H3: ODST: Complete any level without dying on Heroic or Legendary.

Halo: Reach: Kill 7 Moa during Winter Contingency.

Halo: Reach: Complete all Halo: Reach Legendary campaign missions in under 3 hours.

Halo 4: Complete all chapters in Spartan Ops Episode 9.

Halo CE: Complete Keyes.

H3: ODST: Complete Kikowani Station.

Halo CE: Activate Terminal 10 on The Maw.

Halo 3: Beat the par score on Crow's Nest.

H3: ODST: Complete Kizingo Blvd.

Kill 1000 Knights.

Halo 4: Assassinate a Knight in any Spartan Ops mission.

Halo 4: Activate Terminal 5 on Shutdown.

Halo 2: Activate Terminal 10 on Gravemind.

Halo 3: Complete Sierra 117.

Complete each individual game specific LASO playlist for every Halo game.

Halo 3: Complete The Covenant.

Halo CE: Complete Two Betrayals on Legendary difficulty without picking up a new weapon.

Halo 2: Beat the par score on The Oracle.

Halo: Reach: Achieve a score of 30,000 points on Lone Wolf.

Complete all campaigns on Legendary difficulty.

Halo 2: Complete every level of the game on Legendary difficulty.

Halo 2A MP: Kill an opponent that has the Legendary Anniversary achievement.

Halo 4: Complete every level of the game on Easy difficulty.

Halo 4: Beat the par score on Reclaimer.

Complete the Master Chief Saga playlist.

Halo CE: Beat the par time on 343 Guilty Spark.

Halo 3: Beat the par time on The Storm.

H3: ODST: Find a legendary hidden music cue.

Halo CE: Complete the Halo: CE LASO Campaign playlist.

Halo 2: Complete a level in co-op on Heroic or Legendary with the Masterblaster Skull active.

H3: ODST: Find the 1st Audio Log.

Halo CE: Complete every level of the game on Legendary difficulty.

Halo 4: Complete every level of the game on Legendary difficulty, by yourself.

Halo 3: Find the hidden Skull on the Longshore multilayer map.

Complete 450 missions or multiplayer games.

Halo CE: Complete Two Betrayals on Legendary difficulty without killing any Grunts.

Halo 4: Activate Terminal 2 on Forerunner.

Activate all terminals.

Halo CE: Trigger a hidden music cue in Halo: CE.

H3: ODST: Beat the par score on Data Hive.

Halo 3: Beat the par time on Cortana.

Halo 3: He's watching you.

Created and saved 5 Custom Maps in Forge.

H3: ODST: Complete every level of the game on Legendary difficulty.

Collect 10,000 campaign or playlist medals.

Collect 8,000 campaign or playlist medals.

Halo: Reach: Find Data Pad 13 on Tip Of The Spear on Legendary difficulty

Halo: Reach: Find Data Pad 3 on Nightfall

Halo CE: It's a sign.

Halo 4: Complete all chapters in Spartan Ops Episode 5.

Halo CE: Activate Terminal 8 on Two Betrayals.

Halo 2: Complete Metropolis.

Halo 4: Complete Midnight.

Halo 3: Find the poster of the missing man.

Halo CE: Activate Terminal 9 on Keyes.

Halo 3: 4 vehicles, 1 gap on Legendary using Cowbell, Catch, Thunderstorm, Mythic, and Tough Luck.

Halo: Reach: Observe the logo of a buttoned-up mining company.

Halo: Reach: Find Data Pad 5 on Long Night Of Solace

Halo 3: Watching. Waiting. Plotting.

H3: ODST: Find the 10th Audio Log.

Halo 2: Complete all Halo 2 Legendary campaign missions in under 3 hours.

H2A: Found and destroyed the BLAST soda can on Remnant..

Halo: Reach: Beat the par score on Nightfall.

Halo 4: On Reclaimer, use a Wraith to kill at least four enemy Wraiths on Heroic or Legendary.

Win 500 multiplayer games.

Halo 2A MP: Finished as the top player on the winning team in a matchmade game.

Halo CE: Fight alongside Chips Dubbo and listen to his words of wisdom.

Inscrutable. Mysterious.

Halo 2: Collect the Librarian toy in Uprising.

H3: ODST: Complete all Halo 3: ODST Legendary campaign missions in under 3 hours.

Halo 4: Complete the Halo 4 LASO Campaign playlist.

Kill 10 Engineers.

Halo 2: Complete the level Regret with the Prophet Birthday Skull activated.

Halo: Reach: Get a Skullamanjaro in a matchmade Headhunter game.

Halo: Reach: Hear a familiar voice on New Alexandria.

Halo: Reach: Hear a familiar voice on New Alexandria.

H3: ODST: Complete a Halo 3: ODST playlist.

Earn a total of 2,500 Assist medals in multiplayer.

Halo: Reach: Beat the par score on New Alexandria.

Halo 2A MP: Kill 5 people with melee from behind in Anniversary matchmaking.

H3: ODST: Complete NMPD HQ.

Halo 4: Survive Spartan Miller (Ep.5 Ch.1) of Spartan Ops on Heroic or Legendary.

Halo CE: Destroy three of the four Banshees on Halo during a single play-through.

Halo 2: Beat the par time on Uprising.

Halo 4: Save at least one Marine on Hacksaw (Ep.2 Ch.3) of Spartan Ops on Heroic or Legendary.

Complete 1 mission with the LASO playlist skulls enabled.

Halo: Reach: Observe a grizzy scene on New Alexandria.

Halo CE: Disapprovingly look at Captain Keyes' abandoned pipe.

Halo 3: Activate all Halo 3 Terminals.

Halo: Reach: Beat the par time on Nightfall.

Halo 2: Beat the par score on Outskirts.

H3: ODST: Find the 20th Audio Log.

Halo 2: Activate Terminal 13 on The Great Journey.

Halo 2: Beat the par score on Gravemind.

Halo: Reach: Find Data Pad 15 on Exodus on Legendary difficulty

Collect 6,000 campaign or playlist medals.

Halo: Reach: Achieve a score of 150,000 points on Lone Wolf.

Halo: Reach: Beat the par time on New Alexandria.

H3: ODST: View the missing link.

H3: ODST: Complete any level without using a health pack on Heroic or Legendary.

H3: ODST: Complete ONI Alpha Site.

H3: ODST: Find the 25th Audio Log.

Halo 4: Complete a Spartan Ops mission.

Halo 2: Complete The Oracle.

Halo 3: Find the hidden Skull on the Orbital multiplayer map.

Halo 3: Beat the par score on Cortana.

Halo 4: Beat the par time on Infinity.

Halo 2: Complete Outskirts.

Halo CE: Beat the par score on all Halo: CE levels.

H3: ODST: Find the 8th Audio Log.

Halo CE: Complete the level The Pillar of Autumn on Legendary without picking up an overshield.

H3: ODST: Beat the par time on Data Hive.

Halo CE: Finish The Silent Cartographer without shooting, grenades, melee, dying or restarting.

Halo: Reach: Find Data Pad 7 on New Alexandria

Halo: Reach: Beat the par score on Exodus.

Earn a total of 250 Killjoy medals in matchmade games.

Kill 100 Crawlers.

Halo 3: Destroy 3 total Phantoms on The Covenant.

Halo 4: Beat the par time on Dawn.

Halo CE: Complete The Pillar of Autumn.

Halo CE: Beat the par score on The Pillar of Autumn.

H3: ODST: Kill 4 enemies with a single plasma or frag grenade.

Earn a total of 250 CTF Mode Specific medals in matchmade games.

Halo: Reach: Listen to a hidden music cue.

H3: ODST: Find the 17th Audio Log.

H3: ODST: Beat the par score on NMPD HQ.

Halo 2A MP: On Warlord, get 5 active camouflage power ups in a single game.

Halo: Reach: Beat the par score on The Pillar of Autumn.

Halo 3: Find your first missing links.

H3: ODST: Find the 5th clue unraveling the mystery.

Halo 3: Complete every level of the game on Normal difficulty.

Halo: Reach: Complete ONI: Sword Base.

Halo 2A MP: Get 25 melee kills in multiplayer.

Halo 2: Collect the Didact toy in The Great Journey.

Halo 2: Complete Quarantine Zone.

Halo: Reach: Beat the par time on Exodus.

Win 450 multiplayer games.

Halo CE: Activate Terminal 7 on The Library.

Halo 4: Beat the par time on Forerunner.

Halo: Reach: Find Data Pad 4 on Tip Of The Spear

Halo 3: Beat the par score on The Ark.

Halo: Reach: Complete a Halo: Reach playlist.

Halo: Reach: Find Data Pad 2 on ONI: Sword Base

Halo CE: Beat the par score on The Library.

Halo 4: Complete Reclaimer.

H3: ODST: Find all 30 Audio Logs.

Halo 2A MP: Win 10 matches on Bloodline in multiplayer.

Halo 2: Beat the par time on The Oracle.

Halo 3: Complete The Ark.

Halo 2: Complete Regret.

Halo 2: Collect the Prophet of Regret toy in Regret.

Halo: Reach: Play a game of Halo: Reach on the 14th of any month.

Kill 1000 Watchers.

Halo 4: Complete Requiem.

Halo: Reach: Complete 10 assassinations on enemy players.

Halo 3: Complete Halo.

Halo 2: Activate Terminal 12 on High Charity.

Halo 2: Grab the energy sword on the level Outskirts.

Halo 2: Beat the par score on Metropolis.

Halo 3: Activate Terminal 1 on The Ark.

Halo 2A MP: In Anniversary matchmaking, earn a total of 100 Splatter medals.

Halo 2A MP: In Anniversary matchmaking, earn a total of 100 Environmentalist medals.

Halo 2: Beat the par time on Outskirts.

H3: ODST: Complete every level of the game on Easy difficulty.

Halo 4: Why are you even here?

Halo 2A MP: Found and destroyed the BLAST soda can on Warlord.

Halo: Reach: Headshot 10 enemies while they are sprinting.

Halo: Reach: Beat the par time on Long Night of Solace.

Halo 2: Complete Sacred Icon.

Halo CE: Activate Terminal 2 on Halo.

H3: ODST: Complete a Halo 3: ODST LASO Campaign playlist.

Complete three cross-game playlists.

Halo 3: Find the hidden Skull on the Sandbox multiplayer map.

H3: ODST: Is there a toy inside?

Halo 2: Acquire the Scarab Gun.

Halo 3: Beat the par time on The Covenant.

Halo 4: Complete all chapters in Spartan Ops Episode 6.

Kill 1000 Jackals.

Halo 2: Activate Terminal 11 on Uprising.

Halo 2: Beat the par score on High Charity.

H3: ODST: Find the 21st Audio Log.

Halo CE: Beat the par time on Keyes.

Halo 2: Complete a Halo 2 playlist.

H3: ODST: Find the 6th clue unraveling the mystery.

Halo: Reach: Complete The Pillar of Autumn.

Halo 4: Beat the par score on Forerunner.

Win 150 multiplayer games.

Halo 2A MP: On Zenith, personally activate the center energy shield 3 times in one matchmade game.

H3: ODST: Pilot a Banshee on Kizingo Boulevard.

Halo 2A MP: Get 30 kills with the Hornet in multiplayer.

H3: ODST: Complete NMPD HQ without firing the Sniper Rifle on Heroic or Legendary.

Halo 4: Complete Shutdown.

Halo 4: Beat the par time on Shutdown.

Halo 2: Spot the Sid graffiti on the walls of Coagulation in classic multiplayer.

Halo 2: Listen to a hidden music cue in Halo 2.

Halo CE: Complete a match on at least 8 different classic multiplayer maps.

Halo 2: Kill 7 opponents from behind in a row without being spotted.

Halo: Reach: Find Data Pad 17 on The Package on Legendary difficulty

Halo 2: Drive a Scorpion while playing as the Arbiter.

Halo 2A MP: Killed 15 opponents that were airborne from a Man Cannon.

Halo 2: Find and claim the Anger Skull on Legendary.

Halo 2: Find and claim the Assassins Skull on Legendary.

Halo 2: Find and claim the Black Eye Skull on Legendary.

Halo 2: Find and claim the Blind Skull.

Halo 2: Find and claim the Catch Skull on Legendary.

Halo 2: Find and claim the Envy Skull on Legendary.

Halo 2: Find and claim the Famine Skull on Legendary.

Halo 2: Find and claim the Ghost Skull on Legendary.

Halo 2: Find and claim the Grunt Birthday Party Skull on Legendary.

Halo 2: Find and claim the Iron Skull on Legendary.

Halo 2: Find and claim the IWHBYD Skull on Legendary.

Halo 2: Find and claim the Mythic Skull on Legendary.

Halo 2: Find and claim the Sputnik Skull on Legendary.

Halo 2: Find and claim the That's Just...Wrong Skull on Legendary.

Halo 2: Find and claim the Thunderstorm Skull on Legendary.

Halo 3: Find and claim the Black Eye Skull on Normal or harder.

Halo 3: Find and claim the Blind Skull on Normal or harder.

Halo 3: Find and claim the Catch Skull on Normal or harder.

Halo 3: Find and claim the Cowbell Skull on Normal or harder.

Halo 3: Find and claim the Famine Skull on Normal or harder.

Halo 3: Find and claim the Fog Skull on Normal or harder.

Halo 3: Find and claim the Grunt Birthday Party Skull on Normal or harder.

Halo 3: Find and claim the Iron Skull on Normal or harder.

Halo 3: Find and claim the IWHBYD Skull on Normal or harder.

Halo 3: Find and claim the Mythic Skull on Normal or harder.

Halo 3: Find and claim the Thunderstorm Skull on Normal or harder.

Halo 3: Find and claim the Tilt Skull on Normal or harder.

Halo 3: Find and claim the Tough Luck Skull on Normal or harder.

Halo CE: Find and claim the Bandanna skull in remastered mode.

Halo CE: Find and claim the Black Eye skull in remastered mode.

Halo CE: Find and claim the Boom skull in remastered mode.

Halo CE: Find and claim the Eye Patch skull in remastered mode.

Halo CE: Find and claim the Famine skull in remastered mode.

Halo CE: Find and claim the Fog skull in remastered mode.

Halo CE: Find and claim the Foreign skull in remastered mode.

Halo CE: Find and claim the Grunt Birthday Party skull in remastered mode.

Halo CE: Find and claim the Iron skull in remastered mode.

Halo CE: Find and claim the Malfunction skull in remastered mode.

Halo CE: Find and claim the Mythic skull in remastered mode.

Halo CE: Find and claim the Pinata skull in remastered mode.

Halo CE: Find and claim the Recession skull in remastered mode.

Halo: Reach: Won a matchmade game of Invasion in the 1st phase.

Halo 4: Complete all Spartan Ops chapters solo on Legendary difficulty.

H3: ODST: Find the 14th Audio Log.

H3: ODST: Beat the par score on Kizingo Blvd.

Halo 3: This stuff is your history!

Halo 2: Beat the par time on Delta Halo.

Halo 3: Beat the par time on all Halo 3 levels.

Halo 2: Beat the par time on Metropolis.

Halo: Reach: Beat the par time on The Package.

Halo 3: Beat the par time on Sierra 117.

Halo CE: Activate Terminal 3 on The Truth and Reconciliation.

Kill 100 Jackals.

H3: ODST: Find the 23rd Audio Log.

Earn a total of 100 Killing Spree medals in matchmade games.

H3: ODST: Beat the par score on Kikowani Station.

Complete any co-op level on Normal difficulty.

Halo 2: Complete a level with only the Streaking Skull active on Heroic or Legendary.

Halo 2A MP: In Juggernaut, survive as the Juggernaut for 30 seconds.

Win 400 multiplayer games.

Play a multiplayer or co-op game at least 3 months after your first game.

Halo: Reach: Beat the par score on ONI: Sword Base.

Win 350 multiplayer games.

H3: ODST: Assassinate 3 Brutes in a row on Data Hive.

H3: ODST: Beat the par score on Tayari Plaza.

Halo: Reach: Hijack a Banshee during the Reach Campaign.

Halo 3: Activate Terminal 7 on Halo.

Halo 4: Beat the par time on Composer.

Halo: Reach: Finish The Package on Legendary with the Scorpion intact.

Halo 4: Complete a match on at least 4 different game types in multiplayer.

H3: ODST: Complete Tayari Plaza.

Win 10 multiplayer games.

Halo: Reach: Find Data Pad 8 on The Package

Halo 2: Beat the par time on Sacred Icon.

Halo 4: Activate all Halo 4 Terminals.

Halo 4: Complete all Spartan Ops chapters on Normal difficulty.

Kill 20,000 enemies or players.

Halo CE: Complete The Library on Heroic or Legendary difficulty without dying.

Halo: Reach: Find Data Pad 14 on Long Night Of Solace on Legendary Difficulty

Halo 2: Complete The Arbiter.

Halo 2: Fight alongside the legendary Chips Dubbo and listen to his words.

Halo 3: Activate Cortana's Terminal on Cortana.

Halo 2: Beat the par score on Quarantine Zone.

Collect 9,000 campaign or playlist medals.

Halo 2A MP: Get 25 kills with the Gungoose in multiplayer.

Halo 2: Complete The Great Journey.

Get killed by the Guardians.

Halo: Reach: Now that's a value meal.

Halo 2: Beat the par score on Uprising.

Halo 3: Complete Cortana.

Halo 4: Complete every level of the game on Legendary difficulty.

Halo CE: Complete The Library.

Complete 500 missions or multiplayer games.

H3: ODST: Beat par score on all Halo 3: ODST levels.

Halo CE: Complete The Maw.

Kill 100 Elites.

Halo 2: She's not picking up.

Win 300 multiplayer games.

Halo 3: Complete Tsavo Highway.

Halo CE: Complete The Silent Cartographer.