Regulator

The Regulator is a Grineer unit which is found in the Grineer Settlement. They look and function similar to the Grineer Informers but do not disappear on the first shot that does not kill them.

As long as they are floating above other enemy units, an orange glow will surround the units, similar to Rhino's Roar. This will give the units in range increased damage and speed. Just like the Informers, they also disrupt the player's mini-map.

Trivia

 * They are first introduced as a "reward" of the Arid Fear Event.
 * They also function like some kind of announcer for the Grineer, as female voice can be heard announcing messages in Grineer language.
 * It seems the Regulators were mentioned in the Arid Fear victory lore. Captain Vor mentions in his message to the Twin Queens that he will "bring their messages of encouragement to rile up the troops". Judging by the female voice of the Regulator's broadcast, that is the voice of the Queens.
 * After the Informer project failed, the Grineer removed the Orokin cloaking device and replaced it with a radiotransmitter that transmitted the Queens' voice to the frontlines.