Tbf, you were hit by a lot of near misses, not just one. Though yeah that shouldnt cause such catastrophic flooding that quickly but theres a couple of things i noticed:
You were sailing at full flank speed and continued to do so after getting hit and the flooding notification. Water intake is -afaik and also in my personal experience- depending of the ships speed. If you slowed down immediately you would have had more time to seal the breaches. But tbf the yamato takes a long time to slow down so it might have been not enough. (Full stop and full turn is an option to slow down even quicker if its a full survival mode situation and your angle towards threats is negligible because survival comes first) Just a general notice, but still wort trying instead of just sailing on at full flank speed. And yes, that also counts for unsinkability loss. Go full stop mode and you survive 2 times longer in my experience before you inevitably sink, but that might be enough to still get 2 very punishing salvos out.
And you are using the new damage control.
Which in this case caused: Automatic breach sealing plus repairs of superstructure and other damage (that is minor and not a problem at this moment). Right in the end it added a third action, extinguishing aa fires that are never fatal. If you had stopped the repairs (I am not using the crappy new damage controls that make you die in situations you would survive with “manual” damage controls so im not entirely sure if thats even possible with new auto damage control) that would have sped up the breach sealing process a lot. after breaches are sealed, pump the water and only after that repair damage that is not a factor for your survival at this moment.
I’m not saying you did anything wrong (even if applying everything I’m babbling about by the looks of it still probably wouldnt have saved the ship in such a short time) and such damage without any direct hit absolutely seems way off, these are just general things that you can do when taking flooding damage and when dealing with hull breaches. (Ofc depending on amount of water intake which definitely seems excessive here. 50 % in a couple of seconds from 250 kg bombs…yeah sure feels realistic. Ofc with less than 10 or even 20 % water intake over a longer duration theres not necessarily a need to full stop and turn or stop extinguishing fires. But in general every damage control action after the first one not only doubles the timer for both but makes them even longer, so dealing with one after another is multiple times as efficient. So: Figure out the most immediate damage threat to your ship. Barbette fires, Turret fires or fatal hull breaches are usually number one. Repairs usually can wait, especially if they turn urgent damage repairs or fire extinguishing and hull breach sealing timers 3 times longer.
