Legion Service

The widespread use of ANF has resulted in longer enlistments and a generally higher level of competency in the Legion. Additionally in has also resulted in a generally slower rate of advancement, as openings are not as frequent as they would be in a society with briefer lifespans and shorter enlistments. The continuing expansion of the Legion has somewhat alleviated the problem with upward mobility, though it is still common for a legionnaire of decent technical and military skill to spend years if not decades as a common trooper before being raised into the rank of non-commissioned officer. Most of the members of the Legion at the higher ratings have many decades of service.
Ships used by the Legion range from the giant 250,000,000 cuft Superdreadnought ship-of-line to the tiny patrol corvette. Just because most conflicts which the Legion is involved in tend to be "small-scale" on a galactic level doesn't mean that the vessels involved are "small-scale".
Since the Legion provides both space-going transport and planetary combat troops ships-of-the-line tend to embark all manner of combat craft, as well as advanced warsuits. Legionnaires on small craft often act as both spacer technical experts and planetary soldiers.
Because the Legion fulfils so many roles officers tend to serve in a wide variety of different types of billets over their careers, as do senior legionnaires. An energy field technician is likely to find himself serving his first tour in an engineering billet on a battleship; his second tour as a boat engineer on a System Patrol Boat; a third tour as a defensive shield technician in a Legion Ground Battalion and his fourth tour with a security detachment at a Union embassy. An officer can look forward to an even wider scope of possible assignments, including some diplomatic ones.