The audible "booms" associated with the bright flashes are heard when the flash is brightest. This alone tells me this is fake because even a moderate distance would cause a very noticeable delay between seeing the flash and hearing the sound. Whomever created this video did not realize that and synced the sound to the flash to give it "realism" but true realism would have been completely different from what is shown here. Also the potato quality video is intentional as fakes will use this low quality to hide the fakery so it doesn't stand out as obvious to NPCs.