18 hornets in the last battle scene are shown  to be launching sidewinder missiles against the mothership.  Sidewinder missiles are designed to catch up quickly and destroy  small fast moving aircraft and a large mothership the size depicted  in the movie, would be impervious to the relatively small explosive  force of a sidewinder missile. A more effective solution would be to  use mark 84 bombs as the mothership isnt a fast moving object. It  is interesting the Marines/Navy in the movie wouldnt realize this.