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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

Disarmed Dismember 100 Flood parts.
100/100

Fervent Warrior Complete a mission on Insane Difficulty.

20% Story Progress Complete 20% of the story

Double Trouble Complete Two Betrayals.

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

Protocol Dictates Action Complete The Library.

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

Making a Necklace Collect 22 Skulls.
100/100

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

This Stuff is Your History Complete 343 Guilty Spark.

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

10% Story Progress Complete 10% of the story

Especially Special Use SP Moves a total of 100 times
(only counted when completing a mission)

Control Alt Delete Complete Assault on the Control Room.

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

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

Bee Thirty Complete Silent Cartographer.

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

Super-Duper Rescuer Rescue 50 Teammates that have fallen in battle
(only counted when completing a mission)

Perfect Weapon Raise a weapon to 5 Stars

A Hit to Remember Inflict 99,999 damage on an enemy with a single hit

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

Installation 04 Complete Halo.

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

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

Cranial Collect a Skull.

Super Rescuer Rescue 5 Teammates that have fallen in battle
(only counted when completing a mission)

Military Medic Rescue another player that has fallen during co-op play
(only counted when completing a mission)

Stronger Together Switch Teammates 20 times in a single mission

Old School Defender Complete a mission with just a single Teammate on your team

Welcome to the EDF Complete the tutorial

Toy Soldier Destroy 10 collectibles in Haunted Hotel.

Feed Me Seymour Get 10 kills with a single use of the Haunted Hotel plant trap.

Small Arms Complete a Survival Long match without firing a primary weapon.

Psychic Domination Command a Breaker enemy.

Dog's Best Friend Gain a furry friend.

Backroom Espionage Visit all the Secret Hideouts.

Love to Deep Dive Visit the Gap 3 times in less than 5 minutes.

Budding Mycologist Deal with the major Mold Incidents in Manhattan.

Panopticon Intern Contain Altered Items and help Langston.

The Autumn Leaves Complete Pillar of Autumn.

Alpha Omega Defeat an Alpha Scavenger on Hell on Earth

Bioengineering 301 Defeat Moorcroft (Suicidal)

Combat Rediness Equip a Combat Ability in every slot.

Intense Precision Keep Dominance active for 60 seconds.