Kill a 100 Walkers
Kill a 100 enemies with the phage
Kill a 100 enemies with the ripley
Kill a 100 enemies with the warden
Kill a 100 enemies with the zephyr
Kill a 100 enemies with the INFAMY
Open all doors in a single match
Play alone for the first time
Play with one other person for the first time
Play with two other people for the first time
Play with a full party for the first time
Kill a 100 Chompers
Play alone until wave 20
Play with one other person until wave 20
Play with two other people until wave 20
Play with a full party until wave 20
Play alone until wave 40
Play with one other person until wave 40
Play with two other people until wave 40
Play with a full party until wave 40
Repair the reactor for the first time
Repair the reactor 10 times
Kill a 100 Crawlers
Repair the reactor 25 times
Repair the reactor 50 times
Survive until wave 10
Survive until wave 25
Survive until wave 50
Survive until wave 100
Get up and survive after falling 10 times
Be the last player alive in a wave while playing with 4 players
Kill a 100 Stalkers
Buy 10 weapons in a single match
Buy each weapon one time during a match
Spent 1000000 money.
Do 50 headshots
Shoot with all weapons in a alien hole.
Kill three or more alien with a grenade.
Kill a 100 enemies with the Knife.
Kill a 100 enemies with the harpy
Kill a 50 Defilers
Kill a 50 Hunters
Survive 10 Hunter waves
Survive 10 waves with the broken reactor
Survive the first wave
