[rogorogo]

I must apologize for Post #2, I thought everyone knew better. (and I did not want to sound inappropriate)
I foyu go to the mods section an use the search function you will find various threads in which people of the "8000+ posts" - kind (also known as the Gentlemen, who gave us GWX, or WAC, or other Mods) discuss this matter (under various subjects) for a timespan of well over 3 years.
The damage model of the sub model (complex and different to the complex damage model of the target models) is there discussed in length.
in short:
actually this is already modded to some degree by GWX.
- the % "integrity" is rather strangely calculated (and not seen when "realistic damage" on
(- using SH3 commander also influences the topic)-
- when on "realistic damage" an after having stopped flooding and "everything repaired" an still on - let´s say... - 87% "integrity" (which you do no know as you cannot see..) diving to even only 75 (or 45) meters might result in - DEATH (pling ploing, damage reports, flooding and the well known exit screen)
The longer you play, the more you are likely to notice (in my case, once after an unneccessary surface duel with a merchant, and a normal dive for hydrophone search - which by the way marked the end of me trying to play DiD - simply not enough time because of RL).
There are parameters now tuned in GWX that actually model the topic to some degree - but please do not ask for further details, it is complicated and the info is really there in the MODs section.
Sorry for any offense, if taken by my previous post, really.