Kill 10 Xenomorphs that are using vents

Edit a Marine Loadout

Survive a Close Encounter with a Facehugger

Complete Distress

Kill a Xenomorph climbing on the walls or ceiling

Defeat all Xenomorphs in the Sulaco hangar bay without them crossing your barricade

Kill a Xenomorph with a shotgun at very close range

Revive a teammate

Win a round of each game mode

Win 2 rounds of Chainlink

Play a round on all Dragon's Teeth maps

Kill an enemy flag carrier while carrying their flag in CTF