AKnifeSpecialist

Coming Outta the Walls! Kill a Xenomorph climbing on the walls or ceiling

Oorah to Ashes Collect a Dog Tag

Entry Prohibited Kill 10 Xenomorphs that are using vents

Another Glorious Day in the Corps Complete Distress

Personal Friend of Mine Collect a Legendary Weapon

Love at First Sight Survive a Close Encounter with a Facehugger

Need a Deck of Cards? Set up a UA 571-C Remote Sentry

... But No Cigar Rescue a teammate from a Close Encounter

Bad Feeling About This Drop Complete Sulaco Falls

Let's Rock! Kill 10 Xenomorphs in a game with the M56A2 Smart Gun

Quoth the Raven Complete The Raven

Micro Changes in Air Density Track 100 hostile targets with the Motion Tracker

Adios, Muchachos Gib two enemies at once

Still Got a Job to Do Complete Rampart

Just a Grunt Complete Hope in Hadley's

Dragged Queen Complete Home

Game Over, Man! Complete all Campaign levels on any difficulty

No Need For Alarm Complete One Bullet without setting off the alarm

Secreted from What? Kill 5 Spitters without being damaged by acid

Mostly Come at Night... Find Newt's doll

Lean and Mean Earn Rank 20 as a Marine

No Offense Melee a Lurker that is pouncing toward you

Fire Drill Arm the emergency release and escape in under 2:30 on Sulaco Falls

I Can Handle Myself Purchase all Upgrades for a weapon

Anytime, Anywhere Kill a Crusher without it damaging you

I Like to Keep These Handy Collect all 6 Legendary Weapons

Easter Egg Find the Easter Egg

Field Modified, Kill Certified Upgrade every slot for a weapon

I Heard THAT Collect all 12 Audio Logs

Not Bad For a Human Complete all Campaign levels on Hardened difficulty

It's a Dry Heat Kill 3 enemies with a single U4 Firebomb

State of the Badass Art Complete all Campaign levels on Ultimate Badass difficulty

Majority Shareholder Spend 30 Commendations

Short, Controlled Bursts Defeat all Xenomorphs in the Sulaco hangar bay without them crossing your barricade

Remember the Fallen Collect all 35 Dog Tags

Perfect Killing Machine Upgrade every Loadout slot for a Xenomorph class

Stay Frosty Complete an entire Challenge category

Adaptive Morphology Upgrade every Appearance slot once for a Xenomorph class

You Look Just Like I Feel Upgrade every Appearance slot once for your Marine

Heavy Lifting Defeat the Raven in under 1:10 on Soldier difficulty or higher

Arbitrarily Exterminated Kill 2179 Xenomorphs

I Love the Corps! Earn Rank 60 as a Marine

Distinguished Service Medal Complete all Challenges

Platinum Trophy Earn all Trophies

I Only Need to Know One Thing Find your family

They Can Bill Me Destroy the Legato

Now What Are We Supposed to Do? Escape the FTL ship

We Are Leaving! Survive the Queen escape

Thank You, That Will Be All Complete Stasis Interrupted at any difficulty

They're Dead! OK? Can We Go Now? Kill all the Lurkers in Sulaco engineering