During the military service in Iran, some soldiers are responsible for traffic control (entrance and exit of people in a garrison or headquarters after writing down their names and searching them), appearance and discipline of other soldiers, opening and closing gates for vehicles, and things like that (you could say they are in charge of the building although having low ranks). What do we call them in English?
P.S. I believe the words "doorman" or "guard" wouldn't be appropriate since they do not encapsulate all of their duties.