So I've noticed that in Southeast Asia they were still using propeller aircraft for jungle and mountain guerilla warfare until maybe 10 years ago despite having jets in their airforces. I think jets might fly too fast to find the guerillas in the jungle canopy and helicopters might fly too low and be in the range of guerilla guns I think? Myanmar Junta has lost a lot of helicopters the last 4 years to guerillas who have little more than home-made guns. When they use jets for bombing they typically use the smallest slowest jets. Props and paragliders are way cheaper, and might have higher payloads than drones.