We had a long discussion about how "submarine" is an adjective, and that unless context plainly indicates otherwise "submarine tracks" are tracks under the sea rather than tracks made by submarines. Unless you have new information on the development of specialist submarines in the '90s I think we're done with it.
Here's a new claim. I find myself first wondering if it actually happened at all, then deciding it's probably based on some kind of fact, then wondering if steel plates the divers placed over the holes they cut (presumably to stop stuff floating out) had simply slid off as the wreck settled, and finally I wonder what, if anything, the JAIC actually said and how it compares with the words you want to stuff in their mouths.