[Stealhead]

Well the fact that he had two compartments that where flooding and then hit dive and then let the sub get to 300ft past safety test deapth for several subs with 0% damage should tells the whole tale the extra weight that the water being taken on as well as going to a point pretty deep and not safe for long at all it most likely took the blow ballast too long to get the ship above a deapth the hull could take at the surface or at 300ft a 100% hole in your hull is going to make you sink like a stone.The power of milloins of gallons of sea water is fatal Davy Jones has you in the bag.a 100% hull rupture in a submarine is equal to a surface ship having its keel broken nothing can be done.

Just go back to the last save point or scrub the career what ever your play style is. Next time you might take alot a damage and make it that is part of the challenge of the game to me.Also the game will not tell you the new max safe deapth once any hull damage is taken it could be a few feet less than normal or it could be 50% less or worse and when you are at the weak point you will keep taking damage think of an beer can being crushed in a press once you get one bend its progessivaly weaker.And there is a point where it will go from 100% to 0% rapidly this point will change as hull damage goes up.