Xenomorphs are the primary addition from the AvP : Aliens module. They exist as a constant threat, but also one you can contain and exploit for your benefit. The xenomorphs will be divided into five classes.

Worker, Menial, Royal, Misc., and Scourge.

Worker Caste. :smugwarrior:

Drone.

Runner.

Boiler.

Menial Caste. :smugwarrior:

Warrior.

Prowler.

Spitter.

Scourge Caste. :harbinger2:

Carrier.

Chrysalis.

Ravager.

Burster.

Razor Claw.