Hi there and welcome to Subsim
To answer breifly, I think (and someone will correct me if im mistaken) for SHV, the devs have mentioned that your patrol length will indeed effect the crews morale - which in turn effects they way the perform their duties.
I dont belive there will be any fights or arguments amongst them, though
it would be very funny to watch if there was!
Cook: "Hey captain.. you wanna ta-...."
Captain "Oh f**k off Marcus!"
hey - cool nickname BTW
