You are welcome. Notice those little yellow and blue dots. Those are mount points for "equipment", such as the term, or the deck gun, or a water spray, etc. Most of those will have corresponding links in other files, such as a deck gun mount node on the submarine deck, that node's ID will be used as the link in the Library USSubParts Deck_Gun_Xx file (the "Xx" being the actual gun desired). There are sim files for the sub which controls the gun mount (using the ID for linking), and another for the gun itself that further controls the gun. Then there's the ammunition used in the gun... There is also an eqp file in the sub folder, and that has the "name" used in the Deck_Gun_Xx file to name the gun and the dates that it is valid... It's worse than a spider web. More like a maze of spider webs...