I saw the tracking-point at SHOT show a couple of years ago. THey were giddy about Taya Kyle receiving a win in a contest with an expert sniper. After a small amount of training, she did not miss one shot.
https://www.tracking-point.com/american-sniper-shootout-2015/
Gwjack
That video was a couple years ago. No spotter needed practically no training needed, make anyone a sniper that has the mental attitude to handle it.