Been here 4 years and nobody asked me to call them by their military call sign. If they did, who cares. As long as they relax in the cockpit I don’t care. In general, the am guys are more tightly wound and I fly pms. Civilian or military same deal. My bid avoidance guys are all civilian but when I flew ams it was the opposite. Generally a good group of Captains here so I can’t complain.