investigator recommends removing pornography from army base stores .
said soldiers did n't realize salacious shoot not ` in harmony with our values '
utah national guard officer sacked after allowing risqué video to be shot .
emails from within 19th special forces unit show attempts to remove references to their involvement with hot shots bikini models .
scantily clad women used army tank , helicopter and truck as props .
after video made public , soldiers blamed ` uptight mormons ' for outrage .