Yamato's Death Single Mission Problems (Realistic)

[CometFire23]

So I've been searching the web trying to find out if anyone else is having these problems with the Yamato's Death Single Mission, and I only found one of the problems.
The problem that I actually found was the issue of every single torpedo you drop "drowning." This problem I have solved. You have to be going super low and super slow. I have found that if I drop a torpedo from below 100 ft. (30 m) and below 130 mph. (210 kph), the torpedo will actually work correctly and not drown.

So first problem solved.
But... as soon as I solved that problem, a new one appeared (of course).
From all of the videos I've seen of this mission, Yamato is sunk with a single torpedo. What I would like to know is if that is how it is supposed to be and if I'm experiencing a bug. After hours of trying this, a few times I've been able to land hits with at least 3 torpedoes, and the battleship just keeps on sailing like nothing ever scratched it.

So my question is: Is this a bug? Is Yamato supposed to go down in one torpedo? Or am I just not getting the torpedoes in the right places? If anyone knows anything about this I would greatly appreciate some help. Thanks.

[shadain597]

Sorry, nobody really plays the missions. I could have helped you with the initial torpedo problem, but I know nothing about how many torpedoes it takes to knock out the Yamato, or the best place to aim them at.

[Rei [Pwner]]

Body shots work for me. If that doesn’t work, aim for the bow. Generally, Battleships ingame die after 4-6 torpedo strikes using the American Mk.13 torpedo. However, Yamato in the single mission takes only 1… that is