I guess you would be the doofuss that is watching the carnage from below and when I would start firing back at the shooter, you would get out your little i phone. Or, you’d be peeing your panties.
You’re just a keyboard warrior that doesn’t even know the angle of declination necessary to hit a target 320 feet below and 1300 feet away horizontally. Or, obviously, the angle of inclination you would need to hold to hit the shooter at a horizontal distance of 600 ft from the hotel. If Paddock had enough sense to stand back from the window to minimize his risk from return fire you wouldn’t even be able to see him. But soldier on doofus.