| This minifigure has only appeared in video game(s)|
Although this article is about an official minifigure, it never existed in physical form, or appeared in any official LEGO sets.
In appearance, engineers are identical to infantry soldiers. They have a white spacesuit that covers their hands, torso and legs. Their hips are grey, likely covered by a belt. They wear silver and orange body armour over the front of their torso and have two mechanical devices clipped to their sides. Engineers wear a single oxygen tank on their back and a white helmet with a golden visor.
Engineers can fix damaged human vehicles and technology. They can also hack into Alien ones. Once this is done, they can also repair it and use it for human means. They can not hack Alien vehicles, but can take over an Alien factory. Once this is done, generating human-controlled Alien vehicles is a simple matter.
Human Engineers have very little health, no means of attack or defense and move rather slowly, making them very vulnerable to attack.
When infiltrating an enemy complex, traveling in groups or in dropships are the most effective means of success. When in groups, the enemy defense turrets focus their attack on one engineer at a time, leaving the others to safely get behind enemy lines into the heart of the base. Dropships are quicker but more risky, as they have very little health and provide a clear target for defense turrets. If a dropship manages to survive getting past the turrets, every engineer lives. If the dropship is destroyed, every engineer is also eliminated.
- The Alien counterpart of the human engineer is the Alien saboteur.