Having the whole boat modelled in full 3D would indeed be great and a real boon to immersiveness. I've found that once I'm settled on the approach course and the initial firing solution is fed into the TDC, I tend to spend a lot of time at 1x TC soaking up the atmosphere in the control room and conning tower between observations. Having the option to tour the whole ship (or at least more parts of it than what's modelled today) would be very neat.