Hi, M’lord,
You might want to look at Padstow in the ME, where you can get under the terrestrial part and get an idea of how it is made.
I think this environment is the first to use bump mapping, and differs from the others in the amount of hilly, rural, terrain.
Here is material quoted from the ship guidelines PDF:
Selected model creators will get a library of objects from us of small parts of a ship, that they may use for the new vessel, like anchors, winches, fenders, lifeboats etc.
If you want to sell your 3D model also on TurboSquid or another commercial 3D modelbank, you cannot use the items of our library, or only after explicit permission from us.
Static objects
Adding scenery objects and static ships is a whole lot easier. We encourage users with an interest in 3D modelling to create objects like ramps, jetties, static ships (to be moored or anchored), wrecks, icebergs etc.
Initially, you can send these to info@shipsim.com in the 3DS format, with accompanying texture in DDS format. Later, we may extend the mission editor to automate the process for adding static objects.
New scenery
The effort and workflow for creating new scenery for the game is time consuming and complex. We are still working on improving the internal toolset and procedure, so it is not possible to involve 3rd party developers in this process, until we have progressed this further internally.
This is rather old, so the policy may have changed.
Regards,
Marty