DERVISH camouflaging system in Hidden Valley.
The DERVISH camouflaging system is a pre-War technology used in Hidden Valley that provides visual and electronic interference to prevent airborne or long-range enemy weapons from targeting the Hidden Valley bunkers. The DERVISH camouflaging system is mentioned in the Hidden Valley Datastore terminal.
Background
The DERVISH system works by using a widespread network of industrial fans that are dispersed around Hidden Valley to throw the soil, which has been supplemented with a combination of aluminum and other various silicates, to create a cloud of Chaff around the area making it hard to navigate around Hidden Valley and even harder to hit with airborne or long-range weapons due to inability to lock on electronically.