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Living Legend Complete the Campaign on Legendary Difficulty.
100/100

Bee Thirty Complete Silent Cartographer.

Before the Fall Complete Boarding Action.

Tiger Company Complete The Most Dangerous Game.

Personal Space Complete Heavy Burden.

Greenhorn Complete the Campaign on Easy Difficulty.
100/100

Birth of a Spartan Complete the Campaign on Normal Difficulty.
100/100

Heroes Never Die Complete the Campaign on Heroic Difficulty.
100/100

Lore Have Mercy Activate all 13 Terminals.
100/100

Souvenirs Find all skulls and terminals in Boarding Action.
100/100

Brute Loops Find all skulls and terminals in The Most Dangerous Game.
100/100

Parting Gifts Find all skulls and terminals in Heavy Burden.
100/100

Headhunter Collect all 39 Skulls.
100/100

Collector’s Addition Find all skulls and terminals in the game.
100/100

Bad Gas Destroy 100 Grunt backpacks.
100/100

All Shield, No Yield Complete any level on Heroic difficulty or higher without taking health damage.

Clean Sweep Find all skulls and terminals in Pillar of Autumn.
100/100

Infiltration Anticipation Complete Truth and Reconciliation.

Dust & Echoes Evolved Complete The Maw.

Clean Lap On The Maw complete the warthog run without being forcibly ejected from your vehicle.

No Rush Find all skulls and terminals in The Maw.
100/100

Captain’s Orders Complete Keyes.

Priorities Find all skulls and terminals in Keyes.
100/100

Control Alt Delete Complete Assault on the Control Room.

This Stuff is Your History Complete 343 Guilty Spark.

Protocol Dictates Action Complete The Library.

Double Trouble Complete Two Betrayals.

Successful Search Find all skulls and terminals in Halo.
100/100

Plundered Find all skulls and terminals in Truth and Reconciliation.
100/100

Buried Treasure Find all skulls and terminals in Silent Cartographer.
100/100

Stowed in Snow Find all skulls and terminals in Assault on the Control Room.
100/100

Proto Gravemind Find all skulls and terminals in 343 Guilty Spark.
100/100

Timeless Tomes Find all skulls and terminals in The Library.
100/100

Outpost Discoveries Find all skulls and terminals in Two Betrayals.
100/100

Cranial Collect a Skull.

Making a Necklace Collect 22 Skulls.
100/100

Plate Tectonics Break off 25 Hunter backplates.
100/100

Disarmed Dismember 100 Flood parts.
100/100

Claims Adjuster Break off 50 Vehicle parts.
100/100

Make Them Count Kill 100 enemies with headshots.
100/100

This is My Ship Now Eliminate Captain Keyes and trap his six avenging Marines in the Autumn’s observation pen.

That’s My Ride On Assault on the Control Room get to the Banshee before the Elite.

Installation 04 Complete Halo.

The Autumn Leaves Complete Pillar of Autumn.

Practice Makes Perfect In public matches, succeed in 100 healing or repair skill checks.
100/100

Make Some Noise In public matches, scream 50 times.
50/50

Devoted Caretaker In a single trial in public matches, heal the Obsession 3 times.

A Worthy Opponent In a single trial in public matches, be chased by the Killer for a total of 90 seconds.

Honor the Bloodline In public matches, reveal the Killer's aura for a total of 60 seconds in a single trial.
60/60

Everything Runs on CyberAcme Re-establish communication with the Sol system.