Agree, maybe he should do a video on it, I’d like to see the UV creation in a external app and see how it looks in UE4.
@ocoromon - If blender isn’t your cup of tea, try wings3d (http://www.wings3d.com/) it’s free. Don’t get anger, at the end of the day you will have to use blender(or wings3d) or buy a 3D app of your choice, SketchUp is powerful but it lacks a lot for game dev features, you can not even edit UVs. Maya LT is the cheapest. Modeling is so much easier in Modo/3DSMax imho. If you are a student you can get Autodesk software free for non commercial use, you just have to sign up online.
I’ve never seen UV island get move around upon export from a 3D app. What program are you using to create your UVs of your interior mesh? Are you new to 3D modeling and Unreal Engine?
" You see i heard that a lot of brush geometry was a bad thing." That to be the case from what I hear.
“Export from where, I haven’t seen any export feature in UE4 for any UV’s, if you do mean UE4 please explain how, if you meant another program, i’m not sure which one you meant.” I meant from another program i.e. Maya,Max,Modo,etc.