Well, just trying to be fair, here. Being the man on the trigger hasn't been a thing since the 40s.
Even the big cannon were fired electronically, pushing a button in the gun house, from the 30's--getting close to a century ago, now.
It's all very divorced from what "we" would think of as shooting. Sighting is done at the top of a tall tower, and they hold the datum to generate range an bearing shift values. Which are transmitted down to a mechanical calculator, which copes with the 3d Calculus of the ballistic curve of the projectile, the true arc distance including the curvature of the Earth, wind and course drift of both own ship and target ship. Which are translated into bearing (train) and elevation angles to the selected turret(s). The 60-70 men in a 16" naval rifle turret operate without windows, barring the Gun Captain's periscope and/or the local rangefinder (if the turret has one). And, they are 40 to 60 feet lower than the gun director and may not have the altitude to actually see the target they are aiming towards.
So, they have to trust that if the computer says train to 332° and elevate to 22° then, that's the value. As each tube shows loaded, and on the target bearing, the Gun Captain presses their Gun Ready Indicator. Down in Main Battery Control ,the Fire Director will be holding the Fire Key down under orders from the Gunnery Officer in CIC/CEC in some other part of the ship, and at the Turret Ready indicator cycles the Horizontal Level toggle. When that gyroscope aligned to the horizontal in three planes ,the firing circuit closes, and bang go the big guns. Rinse and repeat.
Now, with a 155mm cannon, like the M777, the situation is similar, in that the firing solution for engaging targets 20km away is created elsewhere, there still is a guy on the lanyard who gets to "pull the trigger." It's a shorter lanyard on an M109 SPH, for being in a big metal box. Bother still want about 10 guys and a 7 ton ammo truck.
