An individual wielding a weapon who walks up and down hallways. They must look exactly like their coworkers. Depending on budget, they might engage in small talk with their coworkers. They must have really poor eyesight, and only attack you if you are at most 6 meters away from them. If you outrun them, they will stop chasing you and forget they ever saw you, instead of alerting their employer that there is an intruder inside the base.
