Making Bulletproof BSP with Blender for 227J+
An extensive tutorial on how to perfectly avoid BSP holes using Blender, UnrealEd2.2 and a .t3d batch exporter courtesy of Colin Basnett
Important: The method in this tutorial only functions with 227J and onwards, as it provides alternative means to handle collision in order to make BSP compiling more simplified. Most Ue1 games don't have this!
The tutorial is kindly hosted and formatted by UnrealSP. Make sure to evaluate the pros and cons of this method before applying it on a serious project!