No gunfire sounds are heard at all.
Flashes seen are helicopter beacon flashes or reflections of the flashes.

(vid) Debunking the Luxor Rooftop Gunmen Theory – Las Vegas Shooting – Part 47

100% TWO ACTUAL SHOOTERS ON VIDEO IN VEGAS – According to Joe

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https://www.youtube.com/watch?v=DJZOI398sEU

HD RAW Helicopter Near Excalibur — Vegas Shooting October 1, 2017

Published on Oct 18, 2017

Questions should be asked about this helicopter – who owns this helicopter? What was it doing? Who were the pilots?
May coincide with the following footage:
https://youtu.be/_mS6LH6V_0U
https://youtu.be/IjDYsnSS0fg