Was cruising N of Australia and ran into a typhoon. A lot of rain and the HUGEST rollers I've ever seen (this or SH3); pretty exciting stuff! BUT there seems to be a bug in that the sub will not completely follow the contour of the wave/water beneath it. If the wave breaks away underneath the sub, the sub will hang suspended in the open air...it doesn't plunge down as you would expect. Seems like the sub is limited by the game mechanics to only pitch so far fore or aft while on the surface.
In one instance, the sub looked like it was on top of a two story building....BIG rollers.
Just wish the sub would fall instead of levitate.