How many of you remember the Lear jet with the Pro Golfer onboard that decompressed leaing 10 people dead and an aircraft without pilot in control until it fortunately crashed in the desert - well I wonder how many of you remember how big the hole was that caused the decompression?! There wasn´t a hole it was only a leaking window seal.....Now imagine a 1 Inch (probably more) hole at 30.000 feet.....
Ok so decompression isn't your problem BUT in todays "Fly by Wire" planes there are several hunderd Km of cables & wires behind the covers -allover the Fuselage. A bullet in the Fuselage is bound to hit something important....