Make a Breaker hurt itself.

Kill 10 Ridden with a Skull Totem.

Complete Blue Dog Hollow.

Rescue a teammate from a cocoon.

Complete The Dark Before The Dawn

Find the secret in The Dark Before the Dawn.

Find the secret in Search & Rescue.

Complete a map without ever triggering a horde from Reekers, Birds, Snitches, or alarms.

Kill at least one of each non-boss Mutation.

Complete a mission without any players being incapacitated or killed.

Kill a Snitch without it alerting the horde.

Spend your first Supply Point.

Revive a fallen teammate.