Right 4 Life
Not unlocked yetComplete act 1 with 4 different characters.
Busy, busy, busy
Not unlocked yetFinish 75 quests cumulatively.
Learning the ropes
Not unlocked yetReach level 10.
Dedicated student
Not unlocked yetReach level 25.
School of hard knocks
Not unlocked yetReach level 50.
Knock, knock
Not unlocked yetBreach a locked door with the first blow.
Gotta find'em all
Not unlocked yetFind 60 collectibles.
Nearly there
Not unlocked yetFind 120 collectibles.
Savior
Not unlocked yetSave 5 people besieged by zombies.
Need a hand?
Not unlocked yetJoin another player's game.
People Person
Not unlocked yetPlay with 10 different co-op partners for at least 15 minutes each.
Originality
Not unlocked yetPlay in a co-op team of 4 different playable characters.
Together in the light
Not unlocked yetComplete 5 quests in a single co-op game with the same partners.
Going steady
Not unlocked yetComplete 25 quests while playing with at least one co-op partner.
Ménage à trois
Not unlocked yetComplete 5 quests with 3 co-op partners.
Rageman
Not unlocked yetKill 100 enemies with Fury attacks.
Warranty Void if Used
Not unlocked yetCreate a customized weapon.
Steam Punk
Not unlocked yetCreate weapons to rival the gods of fire or thunder.
First!
Not unlocked yetKill a Suicider with a grenade.
A very special day
Not unlocked yetKill 250 zombies with modified weapons.
Oh, no you don't
Not unlocked yetKill a Ram using tackle skill.
Ah! Spoiled meat!
Not unlocked yetKill a Butcher using an axe.
Rootin' Tootin' Lootin'
Not unlocked yetLoot 5 Exceptional Weapons.
Wave and Smile
Not unlocked yetPlay any Arena in co-op.