Sound rather interesting, good luck.
Also, if you are lacking some drama, I reccommend having the true conflict between the noble, stubborn, dim-witted commander of the garrison (antagonist) and the enterprising NCO with actual talent (protagonist). Let the CO wipe out most of his force with his stupidity, have a naval battle or three, and make the NCO's wife/girlfriend/lover be a French spy. Boom instant success.