I don't know what they are saying, but I do know the Japanese signal man (not Chinese as has been racially reffered to previously), are the most committed men in the fleet.
They even signal as their ships are sinking, they must be good at holding their breaths or have breathing apparatus at the ready. I have even spotted them flashing the lights when they have settled on the ocean floor - signalling in the subs I presume.
what makes you think it needs ten to sink? I would think that was more unrealistic than sometimes 4, sometimes 7... etc. Having a fixed number=kill is not realistic. Randomness is good - who is to say those four didnt hit critical sections, and the ship crew were unable to prevent major flooding?
I did however have a luckiy hit with one (my last torp) with a flattop. It hit, magnetic impact, blew a big hole in the bottom, near the engine rooms I guess. One massive secondary explosion - engines stopped, then the deck alarm started and the thing began to flood, it capsized 4 minutes later. Only spotted one flat top so far, so I hope that was a fluke hit.
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