SH5 is my first silent hunter so I have no idea what crew management was like in previous iterations.
As far as SH5 goes, the 3d boat is there for immersion. The crew plays little part in the game as far as I can make out -- except to make it feel like you're not alone. Unfortunately, their presence makes you feel even more alone -- they're some of the worst NPCs I've had the pleasure of meeting.
