This video has been edited so I do not know what group made the original video. Setting aside the comments and the music accompaniment, the drills these people are performing are somewhat comical. There are a lot of possibilities of danger such as shooting while someone is down range. I get it, some elite groups train this way to build up confidence. However these people do not look to be part of any kind of elite law enforcement group. At one point in the video, two guys are performing synchronized shooting and spinning in a circle with each other. Not sure when that would be required or why but just looks like something someone came up with after watching too many movies.