Here is another firearm practice that might have you shaking your head or cause you to wince. The purpose of this style of training is to reinforce situational awareness. The instructors walk across the shooting line in front of the targets while the students are shooting. The shooters must be aware of what is around them and not just tunnel visioned into the target. Albeit we do not know at what stage of their training this is, I think we can assume the trainers are confident in their skill set that this can be done safely. This training is not for everyone and while I personally would not want to be downrange of firearms going off, I can see how this could help these officers.
Here is another video of similar content.
I am not sure but this might be video of BOPE training. Can anyone verify if the shooters are from BOPE in Rio?