[Oddball.woof]

Easygen first but it made thousands of brushes, so I used LOD based on a greyscale image of an aerial recon photo taken at the time.
Problem with that is you cant control how the patches will be arranged which can make texturing a problem. I am still experimenting to fond the right mix of LOD and brushes. I have the Gensurf plugin too but haven't managed to get anything useful from it yet, Balr14 at TMT has given me some tip on Gensurf and he's the expert on Gensurf Terrain.