My wife played a detailed analysis for me. I upset her at the start, laughing about it. After listening to the entire thing I quit laughing. I don’t know enough about the subject to know if I heard what I heard. Based on sound, there were definitely three distinctly different sounds from the shots. Maybe there’s an explanation for the shooters shots sounding differently?
I would want to know who recorded it and on what type of device... Then I'd ask if the recording device was completely stationary or was it moving in any way...
If it were recorded on a cell phone a simple slight twist of the wrist could (accidentally) change the way the sound was picked up...
All that above is obviously me guessing... Everything is worth looking into in a situation like this....(in my opinion).