Am I right in thinking I can create an entire map in Blender and then just move it into UE4? Or does there have to be underlying brush work like when taking models into radiant. I've been kinda confused with the tutorials and things.
"I still miss my ex girlfriend, but my aim is improving."
Yes, you can create an entire map in blender and import it into ue4. When you import it into ue4 you can choose to have it clipped (collision built) or not, if you choose not you can generate it later, or import it from another mesh.
Once you start using the editor, it's very easy and pleasant to use. I mean I'm not a young person and I dont like "new stuff" but I picked it up pretty quick.