I have problem with the FBX import, when i import the object in the UE4 4.8.2. Texture doesn’t work good.
How you can see from the image, the texture follow the lines of the triangulation of the mesh and it’s orrible
I Used Rhino5 for modelling, and Cinema 4d to fix the normals of the mesh and the exporting.
As for the UVs i’ve created a secondary UV channel too for lightmaps.
The mesh has seperate materials for walls floor ceiling and the rest.
The UVs of the first channel are optimized for texture tiling.
So all you need to do is figure out the right values for U and V tiling.
(e.g. floor is 2:1 and walls are 6:1)
Also pay attention on how the collision mesh was set up, just in case you run into trouble with that on your own model.