>>64216135
Though, it's more a higher end version of the Global Hawk. RQ-4 was TIER II+, RQ-180 is TIER III, or at least TIER III-. QUARTZ/AARS/TIER III was deemed too costly to build and field more than a handful of platforms, and too technologically advanced to be used in any conflict except WWIII. That's where the RQ-4 can trace its lineage back to. They wanted something less advanced that they could use anywhere, while still being a very capable ISR platform. LM Darkstar was TIER III-, and Frontier Systems Shadow was a TIER II+ version of their Frontier Systems W570 TIER III proposal.