Structure of pages/categories in wordpress?

Question

WordPress

Tell me how to make the structure of the site.
I need to make a page (Shipbuilding) on ​​which to display only a description, in the menu it contains 2 sub-items "Cargo" and "Tankers".
"Cargo" and "Tankers" are 100% headings, as they contain posts. But what to do with "Shipbuilding"? I can't figure out if this is a page or a section. Since there is only a description on it, I made it as a page, but because of this it does not fall into breadcrumbs (Breadcrumb NavXT), make it a separate design using the template hierarchy will not work either, since there are several such pages.
Please tell me how to solve this problem?
Or how to add to crumbs (Breadcrumb NavXT) the path from the menu "Home -> Page -> Rubric".

Answer 1

I would make a custom post type. Custom Post Type: Shipbuilding.
Custom Taxonomies - Freight. tankers