Crewman

A standard crewman who uses a Corpus Dera rifle, though their version is less powerful and less accurate than the version available to the Tenno. They are weak and easy to defeat when alone, but in numbers the Crewmen can easily overwhelm the player in barrages of plasma fire.

As of Update 11, Crewmen that carry Detron (Detron Crewmens) shotgun pistols appear in the Corpus Gas City. They wear bright white suits compared to beige suits that other Crewmen wear. Aside from their weapon, they behave similar to standard Crewmen.

Tactics

 * Corpus Crewmen have similar tactics to those of standard Grineer Lancers, as they shoot and take cover when necessary.
 * They also throw plasma grenades occassionally.
 * Their Dera rifles may be slightly weaker than those carried by players, but they can still do more damage than the Grineer Lancers' Grakatas alone.
 * Crewmen are almost always accompanied by MOA's, regularly considering them as powerful decoys.
 * Unlike Grineer Lancers, Corpus Crewmen tend to shoot continuously, while sometimes in bursts.
 * Any part of their bodies, except for the head, is susceptible to any damage, recommending players to change tactics asides from shooting their heads.
 * Due to updates, the Crewman can fire his Dera from both barrels, allowing him to shoot players on elevated areas more effectively.
 * With the savvy obsession of energy shield technology, coming from Update 11, the Corpus Crewmen are equipped with powerful shields, in comparison to those of Grineer with powerful armor. Magnetic Damage or increased  Impact Damage is advised to dispatch the common threat quickly.
 * When armed with Detrons, dispatch these wielders first before dealing with those who have Deras, as the Detron pistols can do significant damage to those who are near.

Bugs

 * If a Crewman would be killed via headshot his skull may fly off, yet his helmet will remain intact.
 * Headshots do minimal damage after Update 11 no matter how the weapon is modded.

Trivia

 * Despite the fact that the Dera used by players is very accurate, the way the Crewmen themselves -who developed this weapon- fire is very unlikely to deliver good accuracy.
 * Even though the Braton is commonly mentioned as a Corpus product, none of the Crewmen seem to use them.
 * Seeing as the Corpus value profit above all else, it is possible they retail it to the Tenno.