@cstross Just recently learned that people fighting on the Ukraine side are going all in for additional side protection for their torso since artillery and drones combined are by far the main threat vs getting shot. (Thermobaric didn't come up yet, though.)
And that there's a lot of infantry-on-drone friendly fire since insufficiently communicated drone movement does not allow for the luxury of asking first.
Plus a *lot* of frequency jamming, making FPV final approach guesswork.