Kill 5 Infected in a row with a single blow.
Complete 5 quests with 3 co-op partners.
Kill 100 enemies with Fury attacks.
Play with 10 different co-op partners for at least 15 minutes each.
Survive wave 30.
Survive 30 consecutive waves with at least one co-op player.
Survive 15 consecutive waves using the analog combat controls.
Survive 10 consecutive waves using only custom weapons.
Play any Arena in co-op.
Kill an Infected with a grenade blast.
Find 120 collectibles.
Kill 25 zombies with your bare fists.
Loot 5 Exceptional Weapons.
Kill 150 enemies using Analog Fighting controls.
Kill 250 zombies using blunt melee weapons.
Kill 250 zombies with modified weapons.
Customize 25 weapons.
Finish 75 quests cumulatively.
Heal yourself with a medkit 100 times.
Find 60 collectibles.
Reach level 25.
Kill 50 human enemies.
Sever 100 limbs.
Kill 250 zombies using edged melee weapons.
Complete 25 quests while playing with at least one co-op partner.
Create weapons to rival the gods of fire or thunder.
Create a customized weapon.
Travel a distance of 20 kilometers on foot.
Kill 50 zombies using a vehicle.
Drive a total distance of 10 kilometers.
Kill a zombie with 10 different melee weapons.
Reach level 10.
Complete 5 quests in a single co-op game with the same partners.
Breach a locked door with the first blow.
Join another player's game.
Explore the entire island.
Use a hammer to kill a series of 15 zombies without taking damage.
Complete act I with 4 different characters.
Reach level 50.
Set 10 zombies on fire simultaneously.
Play in a co-op team of 4 different playable characters.
Kill 10 zombies in a row with headshots.
Set 5 enemies on fire and then kill them with explosives.
Survive 5 waves using only your fists and legs.
Kill enemies of 6 different types during a single round.
Survive 5 waves in each of the 4 Arenas.
Survive 15 consecutive waves with each of the 4 characters.
Kill 250 zombies using firearms.
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