Or small combattant, in our case really small - a corvettes. There are five or six officer billets on a guided missile corvette of Russian navy, and no one of them is of comm trade (i.e. all: radio, crypto, nets and so on). So as the corvettes organized into divisions (four to ten ships), there is small division staff, where the dividion's comm officer has the O-3 billet. He is not in the ship's company, he is staff officer, but somtimes went to sea to qualify the crew, for a week at best, and no overseas deployments at all. Four years there, then a staff of a brigade, similar job but O-4 billet. Then a staff of a squadron, O-5. And a senior faculty officer in some naval college, O-6. That is a typical career of some SWO types from the Soviet time. There isn't such thing like "patriotism", just a career in the navy. A lot of pragmatists are there, indeed.