Pvt. Vasquez: With Drake, Pvt. Jenette Vasquez was one of two Marines operating Smartguns on LV-426. Vasquez and Drake were close friends, and they mutually agreed to disobey the "no-fire" order.

Battle-Damaged Alien: Besides their acid blood, the xenomorph's greatest weapon is their numbers. A single xeno is dangerous enough, but a swarm is virtually undefeatable, outside of a nuclear meltdown.