the unreachable

A restricted area, a testing ground for aircraft, a no-ordinary-place, area 51 of the earth but now in planet B. It hosts aliens who work there 24/7. No information is disclosed about their mission yet. The orange posts located there act as sensors and immediately shoots everyone who approaches them. The intelligence agencies have started investigations to decode a classified document recently discovered about the area. However, the only clue they found was initial letters of something bigger; UFO