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