It makes a huge difference. Shots from different angles going down range at different trajectories will be totally different sounding. Especially when you factor what the rapport is bouncing off of. Don't forget either that several weapons were used which leads me to believe there are probably several different types and calibers being fired. Have you ever been around gunfire before?
This video is some dumb shit. It's as bad if not worse then the Libtatds already screaming gun control. Red Elephant shame on you.