“Trained to go for head shots.”
That means more misses, and more collateral damage—hitting innocent bystanders with failed head shots.
I think the SIG 516 has a greater effective range than 117 yards. Forget head shots on a moving target with a red dot at that range. Wow. He carries extra magazines and some are transparent. Deadly!
They don’t want to blow them up if the have a bomb vest. Also a cns shot might keep them from triggering the bomb unless it’s a deadman trigger.