Quote:
The two crewmen you refer to operate the forward and aft dive planes so when the u-boat is on the surface they are not required and can take a break. They will only take up their positions when submerged. However, this does not affect the crew management screen (F7).
|
Could'nt explained any better.

You can see it in Das Boot aswell, when they dive/crashdive the watch men jumps down and 2 of them go up to their positions.