I worked for a small PACS vendor (mainly IT support and network engineering, and satellite network stuff, but also training rads, techs, and other doctors on how to use the image viewer, report writer, etc.) which was used for dod and others in iraq/afghanistan/kuwait/etc, and spent 2 years in Afghanistan (enh), Kuwait (awesome), and Iraq (been there, done that, was kind of boring by 2010). Also by the federal bureau of prisons, and some cruise lines.
Before that I was doing satellite/wireless/etc. networking, and some of my customers were various SOF who had fairly badass medics (regular army SF 18D is probably better than a civilian paramedic, at least for trauma, and the "other" guys had people beyond that, including some actual MDs who were also shooters). I did "combat lifesaver" class and then spent a lot of my spare time hanging out with the SF or SOF medics (because they tended to be more interesting than the shooters). I got some of the rad techs to teach me the basics of how to get decent images from CR/DR/CT/US, since I was trying to figure out which problems were caused by technique, which were caused by emitters or tables, which were caused by plates or scanners, and which were caused by our system. I kind of want to do an EMT course when I have time here, although I'm not sure where I'd volunteer to keep the skills current after that.
Before all of this I actually lived out in Baghdad for most of 2004/2005 with ~zero medical care or really any professional support (2 Americans, 100+ Iraqis), so it was mostly "learn anything you might possibly need well enough to do it yourself", and "don't get shot").
There were also civil affairs/outreach efforts, and some charity efforts (rotary club) to bring medical care to civilian population, which was weird, since Kabul had a private hospital with a 64-slice CT (when DOD had 16 and 32), and there was a private 2 Tesla MR in Jalalabad.
Mostly I was in "role 3" facilities, which were essentially as good a level 2 trauma center and a little bit of additional facility in the US. Also went to "role 2" (which were essentially 5-10 doctors, plus nurses and techs, with a couple of trauma bays, and X-Ray and US but not usually CT, and some of the FSTs (who augmented role 2 with much better surgical capabilities). In general the equipment and staff were top-notch, and the only problems were physical facilities. CTs tended to be in shipping containers, and the Army CSHes were big tent farms (which sucked), while USN and USAF tended to build fairly decent hardstand buildings (not as good as Stanford, but better than most of the rural counties).
On the issue of imaging without interpretation -- it's kind of funny. One of the big DoD pushes was to go back and have a radiologist read and issue an official report for every image shot of a US patient from the start of operations (2001/2002), in ... 2009 or 2010. There is the benefit that US people can't sue the government for malpractice, and Iraqis/Afghans aren't really in a position to sue, either (arguably the only ones with standing would be enemy combatants held in US custody).