Bismarck-Tirpitz multiskin problem

I think i found it Jimbuna, or part of it.

Seems that Thompsons ships 3.1 has some kind of error in the sim file, cos by keeping the old sim and editing the gc height, engine power etc in, it was ok. With the new sim i had been getting forward motion from the Tirpitz but no wake or sound.
But then i loaded lifeboats&debris_v4 and it messed up again, no target recognition or movement. I've not got round that one yet.
Is the (Unit_Ship) section necessary in the val's?, it's the section that has things like Hydro, propulsion, drag etc in it.
It appears to be missing in 3 of the ship val's i've looked at.
If(Unit_Ship) is not the problem i don't know what else is causing it.

Edit: just looked through some more val's and the (Unit_Ship) is also missing. Seems it's not needed.

I don't think it's the mission but i'll send it if you want.
Where do i send it?