which is stupid!
"Erm, Excuse me, Admiral Donitz, sir, I'm absolutely thrilled by my promotion to Oberleutnant zur See, thank you ever so much, it's not as if I didn't sink 2 battleships a few days ago, but I'd like to trade in my extra stripe and the pay rise for better batteries for my boat if you don't mind."
"of course my boy, no problem at all <rips up one bit of paper, and signs another> now that you have your nice new batteries why not go out there and...
BE MORE AGRESSIVE!!!! "
the idea is probably so the game can demote you if you are dumb enough to sink a hospital ship or something but it's moronic to trade the rank of Kapitan z S for a bloody zaunkonig! and that could happen
</rant>