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This Stuff is Your History Complete 343 Guilty Spark.

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

Control Alt Delete Complete Assault on the Control Room.

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

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

Claims Adjuster Break off 50 Vehicle parts.
100/100

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

Bee Thirty Complete Silent Cartographer.

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

Infiltration Anticipation Complete Truth and Reconciliation.

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

The Autumn Leaves Complete Pillar of Autumn.

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

Cranial Collect a Skull.

Welcome to the Penthouse Prestige once in multiplayer Public Match.

Shooting on Location In Call of the Dead, kill 10 zombies with one Scavenger shot from over 100 feet away.

The eagle has landers In Ascension, escape on all 3 lunar landers.

Sally Likes Blood Demonstrate killer economic sensibilities by taking down 3 enemies with a single bullet.

Hands Off the Merchandise Kill the Pentagon thief before it can steal your load-out.

The Collector Buy every weapon off the walls in a single Zombies game.

Sacrificial Lamb Shoot at or be shot by an ally with a Pack-a-Punch crossbow and kill six zombies with the explosion.

VIP Receive orders from Lancer.

Give me liberty, or give me death Escape Vorkuta.

When the Revolution Comes In Buried, return to processing.

Ectoplasmic Residue In Buried, acquire a perk for free.

Sacrifice Ensure your squad escapes safely from Cuba.

Death to Dictators Take down Castro with a headshot.

Welcome to the Club Reach Sergeant (Level 10) in multiplayer Public Match.

Big Leagues Start the Campaign.

Just ask me nicely Break free from the torture chair.

Skyfall Jump out of a plane in Slovakia

I expect you to die Survive the explosion at the hotel in Slovakia

Shaken not stirred Complete your first assignment at the nightclub

From Malta with love Complete your training as a recruit in Malta

Sleight of hand Disarm an enemy by shooting a weapon from their hand

Icebreaker Survive the helicopter crash

Brothers in Arms Play one team-based PVP match.

Hold the Line Defeat an invading Sniper Jager.

Hostile Takeover Win one Axis Invasion as an Invader.

Survivalist Complete an entire Survival mission.

Open Surgery Hit every Organ at least once with a Rifle.

Vive La Résistance Complete the campaign.

Crème de la Crème Complete the entire campaign on Authentic difficulty.

Whatever it Takes Stop the Zugwerfers from leaving and obliterating the D-Day landings.

Full English Complete 11 Optional objectives.
11/11

Spread Your Wings Destroy 21 Dead-eye Targets.
21/21

Top Secret Collect 35 Classified Documents.
35/35

Pen Pal Collect 35 Personal Letters.
35/35

Innovator Interact with 21 Workbenches.
21/21

Treasure Hunter Collect 22 Hidden Items.
22/22