Always Maestro,
Glad to document my suggestion:
I decreased .tga to 80% of original opacity (+20% transparent) and it looks simlpy gorgeous;
Even more on a dark side of u-boat;
Keep in mind that your test mission is a windy one... in more calm conditions, water
would not fall down from "wholes", but rather slide, pour dawn the side of u-boat...
My friendly, but strong suggestion, is to decrease the "speed" of falling water by 10%... it would look better in all "wave states"
Pls, take your time...
Looking forward to your opinion after 24 hours...