Easily the largest community of officers in the United States Navy
s drive ships, launch missiles, oversee safety procedures, control the public affairs outlook of ships, plan tactics, conduct safety inspections, make sure the engines are running smoothly, stand watches, maintain weapons caches, ensure smooth power flow, throw everyone around them under a bus so they can sleep and/or get promoted, cry nonstop, attempt to commit suicide but fail because they have absolutely no energy, and much more. Basically, they do everything on a ship with the notable exceptions of: sleep, have free time, and enjoy their life.
Despite the financial, educational, and prestige
incentives, the Navy has an extremely difficult time retaining SWOs because their lives suck so badly. It's generally the last choice of designators, filled by people who either have to serve in the Navy because it paid for their college, or lunatics who volunteer to be a SWO and almost immediately regret their decision.