Well, seems like every Bofors mount I ever saw, had a Gun Trainer, and a Gun Layer..
No matter the country, or the mount, Single Doubles and Quads..
(Axis and Allies both used the Bofors 40mm)
I think around the Vietnam era, in power turrets, they finally went to a single
gunner with dual axis control..
The British used it heavily in North Africa as an Antitank Weapon firing solid shot..
It was very effective..