Actually, that gunner on the .50 mounted on the bumper bar of the truck reminded me of something I read decades ago about the turrets on bombers having 'gun stops' to prevent gunners shooting bits off their own aircraft whilst engaging enemy aircraft. I have to wonder how many gunners did significant damage to the airframes of their aircraft before someone came up with the 'stops' idea. Likewise, I have to wonder if (and how many of) those truck mounted .50 gunners put some rounds into the A/T gun and crew whilst engaging enemy infantry.