Lets start with something simple. Lets start by creating map models. From models through railings to prefabs.
It is good that you already have the necessary addons installed in Blender. It is evil to explain a completely primitive thing.
I recommend downloading the addon Offest edges, take a look at Bool Tools and also take a look at this page, which explains what all those shaders mean
https://modding.scssoft.com/wiki/Docume ... ed_shaders
If you have any ideas etc ... feel free to come here with them, I also take criticism

If you dont want to search for DL links for addons, you can find them in the description below the video.
1. How to create easy map model
https://www.youtube.com/watch?v=9NdBHWQ ... e=youtu.be
2. How to crete road template
https://www.youtube.com/watch?v=-lXaKas ... e=youtu.be