shoot, what you just wrote made me thinking of some other things...
2A, 2B, 2D .val files seem to be just the same file in W&E Combi V2.1, it looks like smoke was made for 2A and then it was just copied for 2B and 2D (only with different .tga files for smoke)
I just got original waterstream v4 mod and trying to compare all those .val files but it looks like 2A, 2B .val are the same but 2D .val file is different here
wonder if no harm was done to other uboats too..
I think that we should check this version for 2D first and later see if other boats are ok, because I'm not so sure right now
EDIT: corrected another thing for 2D - it's called VisualDamage and it also had Parent id copied from 2A/B
new NSS_Uboat2D.val file on media fire for testing:
http://www.mediafire.com/file/qokdw5...SS_Uboat2D.val
EDIT2
: I went through VIIB/C, IXB/C/D2 it looks like .val files are ok - they didn't change in comparison to original waterstreamv4 (only smoke was added)
I really believe that changes for IID should work - please test the .val file from this post, NOT the previous one
thanks