How automation changes modern battleship crewing

Could modern navies crew carrier-sized railgun or coilgun battleships, and would their return boost recruitment?

Yes, with perhaps 300-400 personnel through modern machinery and weapon automation; a recruitment benefit is uncertain.

Modern machinery and automated guns would need far fewer people than a Second World War battleship. Gas propulsion is the likely choice for most navies, reducing the engineering complement. Nuclear power is considered less attractive for a ship expected to exchange fire at close quarters than for a carrier kept farther back. The resulting estimate is around 300-400 crew at most, while any effect on recruitment remains uncertain.