GuyFromGameStop

Overachiever In Origins, complete all 4 Challenges in one game.

Kung Fu Grip In Origins, free yourself and another from the Panzer Soldat’s claw in one game.

Super Dupe Duplicate an item at the Super Duper

Personal Space Complete Heavy Burden.

Tiger Company Complete The Most Dangerous Game.

Big View Visit the map

Big Walk Cross the drawbridge

Before the Fall Complete Boarding Action.

Dust & Echoes Evolved Complete The Maw.

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

Captain’s Orders Complete Keyes.

See Me, Stab Me, Heal Me Fire a Pack-a-Punched Ballistic Knife at a downed ally to revive them from a distance.

Double Trouble Complete Two Betrayals.

Bad Gas Destroy 100 Grunt backpacks.
100/100

Protocol Dictates Action Complete The Library.

Disarmed Dismember 100 Flood parts.
100/100

This Stuff is Your History Complete 343 Guilty Spark.

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.

Plate Tectonics Break off 25 Hunter backplates.
100/100

Claims Adjuster Break off 50 Vehicle parts.
100/100

Bee Thirty Complete Silent Cartographer.

Infiltration Anticipation Complete Truth and Reconciliation.

Cranial Collect a Skull.

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

Installation 04 Complete Halo.

The Autumn Leaves Complete Pillar of Autumn.

Undead Man's Party Bus In TranZit, complete all additions to the bus in 1 game.

I Don't Think They Exist In TranZit, kill one of the denizens of the forest while it is latched onto you.

Playing with Power In Origins, build all elemental staffs in one game.

All Your Base In Origins, activate all generators without allowing one to stop.

Paranormal Progress In Mob of the Dead, open a door without spending points.

Feed the Beast In Mob of the Dead, obtain Hell's Retriever.

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

Just ask me nicely Break free from the torture chair.

Opening the Vault Discover what the Hyenas stole from Air Force One.

Confetti and Carnage Find an escape in Level FUN.

Footsteps in Limbo Find an escape in Level !.

A Tranquil Sojourn Find an escape in Level 37.

Abyssal Echoes Find an escape in Level 6.

Clerical Desolation Find an escape in Level 4.

Rust and Rend Find an escape in Level 2.

Circuit Breaker Find an escape in Level 3.

The Beginning Find an escape in Level 0.

One Last Ocean Complete "To the Shore's End."

Honor-Bound Recover 22 COG tags (on any difficulty)
22/22

Domination Complete 10 different chapters in co-op (on any difficulty)
10/10

One-way Road Ahead Solve a Magnetic Cube puzzle 1 time.