Edgethis

Big Brawler Get 10 consecutive zombie melee kills before Insta-Kill expires. (Map Pack 2 only)

Whatever It Takes Complete Chapter 5

IEDead Kill 60 enemies with grenades/explosives

Specter Officer Reach max level with one class in the Cooperative campaign.

Party-pooper Sabotage the wedding.

Electric Whisper Learn how to craft Electric Arrows

Crash Course in Brain Surgery Kill 100 Walkers while Grappling

A Series of Unfortunate Events Eliminate Mendola with the crystal ball, Kong in an electrocution, and both by poisoning the pipe.

Ravenous Stud Collector Collect 60,000+ studs in a single streak (no more than a 2 second gap between each stud collected)

SNAFU Complete SNAFU.

Long Board Ride the Hoverboard for a total of 10,000 meters (electro-mag cables don't count!)

Moving to the 'Burbs Complete the Third Act

Help From My Friends Use the collectible special inventory items 25 times in Story Mode

Backwards & Forwards Complete ALL levels in N. Verted mode

Mission Complete Reach Colorado Mastery Level 20.

Double Finish Killed 2 enemies simultaneously.

Come Back To Me Kill a Sectoid who is currently mind controlling a squadmate

I've not seen such bravery! Complete all Trophies in Gauntlet™

Jedi Master Get a Platinum Medal on a Jedi Mission

Technical Wizardry Succeed at a cumulative total of 100 reversals (single player only).

I’ve seen some things… In Kino Der Toten, visit every location the teleporter can take you to.

Next Step: Bullet Belt Fire 300 Bullets

Business of Makin' Sausage Complete Chapter 6

Bookworm Bookworm - Found all journals

Arachnophobe As Caddoc, conquer your fear as well as the spider god in Chapter 2

Completionist Dominate 100% of Career by beating all the track records.

A for effort Attain a Time Trial star rating of 35

Perk-a-Holic Have all four perks simultaneously active in a game of Nazi Zombies. (Map Pack 2 only)

Dark, Dank and Dangerous Find a Dungeon

Get Out of Dodge Complete the Final Marked Destination on the Map

God Among Men Kill 250 total enemies during Slo-Mo

Back to the roots You have decided to abandon the old continent to its sad fate

Kaboom Kill at least 3 enemies with one explosion

Platinum Trophy Unlock all trophies

Clone Captain Get a Gold Medal on a Clone Mission

2010 Hall of Fame Nominee Induct a Superstar into the HALL OF FAME.

Guilty as Charged Complete a Murder Circus Finale with Chief Justice.

Gimme Five Attain Level 5 with all Murder Circus contestants.

Pack-A-Punch-ectomy In Revelations, recover the Pack-a-Punch machine from its abductor.

Most Dangerous Game Complete a Murder Circus Finale with Artemis.

Sayōnara Reach Hokkaido Mastery Level 20.

The Hunted Becomes the Hunter Kill 5 Walkers in the Cabot Ridge Creek Bed

Perkaholics Anonymous! Survive until round 20 without buying a single Perk. (Map Pack 3 only)

Day 0 Completed "Day 0"

Flea Market Bought a property cheaply

Interception Grapple to an Agent who's reeling through the air, and reel-kick them

Viva La Reina Complete a Murder Circus Finale with Consuela.

A big step towards peace You have chosen balance, but you miss some of your allies

Extraordinary Popular Delusions Had all happiness values above 50

40 Knives! Kill 40 zombies with the bowie knife. (Map Pack 3 only)