I have worked in two industries that hire a lot of ex-military with essentially a high school level of education.
The first is nuclear power. A lot of the people working in the control rooms are from the military, and it is a very high paying and comfy job for someone without a college degree. The other is high skill technician and assemblers in manufacturing.
The things these jobs have in common is they need a strict adherence to rules and procedures, which is something military training makes people well suited to.
I'll note with the nuclear power example that they don't simply hire ex-military, they hire from a very specific subset of Navy nuclear propulsion workers.
Even being good at following orders isn't going to help you get your civilian SRO license, but sailors who have been trained on the Navy's various reactor types have easily-transferable knowledge for civilian PWR and BWR plants, and so they get picked up quite easily in the civilian sector.
The first is nuclear power. A lot of the people working in the control rooms are from the military, and it is a very high paying and comfy job for someone without a college degree. The other is high skill technician and assemblers in manufacturing.
The things these jobs have in common is they need a strict adherence to rules and procedures, which is something military training makes people well suited to.