Resource Types not in use?

[Lothos]

Does anyone know if these items work at all and if so what do they do? Their does appear to have some code built into them but not sure what it does.

Do these other types work or having any code to them as I do not see them in any of the SC games. If yes what do they do?

Resource - Mulberry Port (You can place on the map but cant move anything into it)

Resource - Submarine Pen (It is an X, have not tried to place it. Anyone know anything about it?)

Resource - Airfield (It is an X, have not tried to place it. Anyone know anything about it?)

Resource - Bridge (It is an X, have not tried to place it. Anyone know anything about it?)

Naval - Mulberry (I can increased the build limit but it does not show up in any menus that I can see, nor can you build it. Anyone have information on it?

[Nginear]

Giving this a bump 'cause I too have wondered, and would like to see them developed a bit more.

I experimented with Mulberries and airfields but couldn't get them to do much. Airfield just looked like any other resource.

[The Land]

so far as I can tell they exist in the editor but do not do anything, it looks like a hangover from some other intended development (maybe the devs planned some smaller-scale scenarios?) but never implemented

There are a couple of slots on the tech screen that also do nothing in reality.