Escape from the ship

Find a boat for use in the jungle

Successfully defend the tunnel entrance

Clear out the cinema

Gain access to a long-range radio station

Survive the horde on the roof

Reach Henderson

Make pact with Serpo

Enter the docks in Quarantine Zone

Finish the game

Finish all quests in the game

Find all the secret files

Obtain level 50

Obtain level 70

Install a total of 5 barricades during hub defense

Complete all the main quests cooperatively with any number of partners

Find 50% of collectibles

Find all collectibles

Find all pages from the guide book

Kill the Twins

Find all the volunteer's voice recordings

Rescue 20 NPCs that have been grabbed by monsters

Kill 10 monsters with one mine

Kill 100 monsters with thrown melee weapons

Kill 50 monsters by smashing, decapitating or shooting them in the head

Kill 100 monsters with a kick

Kill 100 monsters using the boat's speed boost

Kill 100 enemies using charge attacks

Kill 25 monsters with a chainsaw

Finish quests for Dr. Kessler

Finish hospital quests for Cecil

Defeat Harlow

Mark 100 opponents which were then killed by your co-op partners

Kill special enemies: Grenadier, Thug, Wrestler, Infected, Suicider, Screamer, Butcher, Floater.

Find and kill all named champion monsters located in dead zones