Just started on this one. The first of 4 in David Weber & John Ringo's Space Opera series " Empire of Man "

It tells the story of the spoiled, self-centered and petulant Prince Roger MacClintock and his bodyguards of the Empress' Own Regiment who get marooned on the alien planet of Marduk due to an act of sabotage on their ship and must fight their way towards the local space port (held by enemies of the Terran Empire) in order to get back home to Earth.