Moreau's gunman uses a "silencer" in his gun to reduce the sound of the gunshot to a mere "Phwt!". This is impossible. First, the correct term is "suppressor". This is because a suppressor does not silence any weapon - it eliminates muzzle flash and reduces the sonic pressure of a shot. A gunshot is at least 160 decibels, and suppressed gunshots are typically around 130 decibels, the equivalent of the sound of a jet plane from a distance of 50 feet, hardly a "Phwt!".