I Can See You!

Spotted 100 enemies ending in an assisted kill in Versus

Nub Pwn3r

Won 20 rounds in ring-based game types by shutting out the opposing team

Don't You Die On Me

Revived 100 teammates in Versus multiplayer

Brothers To The End

Defeated General RAAM in co-op on Insane without either player being DBNO

I Can't Quit You Dom

Completed all acts in co-op

Commando

Completed all acts on Insane Difficulty

Soldier

Completed all acts on Hardcore Difficulty

For the Fallen

Recovered all 33 COG tags

Domination

Completed 10 different chapters in co-op

Whack-A-Grub

Closed all 4 e-holes around the fountain in Fish in a Barrel without any Locust fully emerging

Dom-curious

Completed 1 co-op chapter in co-op

Clusterluck

Killed 3 enemies at once 10 different times

Around the World

Won a match on every Versus map

Handyman

Killed an enemy with every weapon in Versus

CQC

Won 25 matches in Boxes

Level 25

Reached level 25

Better Late Than Never

Won 25 matches in Team Deathmatch

Mix It Up

Won a match in every Versus game type

Can't Touch Me

Won 10 Versus matches without losing a round

Level 10

Reached level 10

Don't Hate the Player

Finished with the highest points in a Versus match

G-reader

Read one full comic

Level 5

Reached level 5

Gimme Some Skin

Played one Versus Match with a Custom Weapon Skin

Always Remember Your First

Finished playing a Versus match

Classic Mercenary

Completed all acts on Normal Difficulty

A Dish Best Served Cold

Defeated General RAAM

Mercenary

Completed all acts on Casual Difficulty

All Aboard! Uh... We're Aboard!

Boarded the Imulsion bound train with the Lightmass Bomb

Shock Therapy

Killed the Brumak

Marcus? Is That You?

Restored communications with Control

Power Up

Restored power to the bridge

YEEEEHAAAAA!

Escaped from the Brumak (end of Ch.6)

Know Place Like Home

Discovered Adam's secret lab

Fry Up With a Side of Greens

Killed a Berserker in the Conservatory

Raven Down

Delta found downed chopper

Lethal Acoustics

Deployed the Sonic Resonator

Broken Fingers

Killed a Corpser

Honor-Bound

Recovered 22 COG tags

Go Time, Show Time

Delta descended into the mines

Smell Good Too...

Reunited with Baird and Cole inside the Imulsion Factory

The Biggest E-hole

Defended Stranded Settlement and headed to Lethia Imulsion Factory

Taking Laverne for a Ride

Got the Junker at Chap's gas station

Lights, Action!

Used the spotlight as protection from the Kryll

No More Favors

Made a Deal with Franklin

Time to Remember

Recovered 11 COG tags

My Love for You Is Like a Truck

Killed the Berserker in the Tomb of the Unknown

Yeah, yeah, Group Hug

Rescued Damon Baird from the Tomb of the Unknown

Cole? As in Cole Train?

Rescued Augustus Cole in the House of Sovereigns

Zen and the Art of Reloading

Performed 25 perfect active reloads

Zen and the Art Part 2

Performed 5 perfect active reloads in a row

Welcome to Delta Squad

Escaped from the Slab

Prison Breakout

Completed tutorial path on any difficulty