[Beery]

The Hull integrity notification is kept in the en_menu.txt and de_menu.txt files (which one the game accesses depends on the text language option you use).

Look down the file until you see the following line:

589=HULL INTEGRITY %s %

Or in the German file:

589=RUMPFZUSTAND %s %

Change this (in whichever file your game accesses) to read:

589=

That's all you need to do.

Note: it is indeed realistic NOT to have a hull integrity percentage readout. No U-boat commander could tell what the state of his hull was while the boat was at sea. A seemingly badly damaged hull might survive numerous depth charge attacks, while a seemingly undamaged hull could collapse after a light depth charge attack. The commander had no way of knowing until his boat was inspected in the base. He would certainly not have a percentage readout. This hull integrity 'feature' is probably the single most unrealistic aspect of this simulation.