And the lightsabers? Plus, if it is an energy field, it would not stop physical objects that are non magnetic, period, nor would it absorb all energy, just X amount. The Halo rings were able to bypass anything. That is why the Noah's ark needed stored data. You are literally only arguing about the death star, and how the plasma pistol isn't valid science. Death star won't do much if outnumbered a million to one.