I want try convert some UT2004 maps to UT99, but terrain look like exists on different level.
I try use source heightmap from UT2004 map in Nem's Mega 3D Terrain Generator, but result very different from which generate UT2004.
Hide all actors except TerrainInfo.
Use 3D Ripper DX for get obj.
Obj import as static mesh into Unreal 227i.
Place static mesh on map.
Convert mesh to brush.
Brush copy to UT99 UnrealEd.
But most of this terrains too detailed for brushes. So you not able built map after that.
Possible need use some 3d tools for simplify terrain.
But look like better export source height map to proper BMP (2k4 UnrealEd not able do this) and use it in any terrain generator for get some low poly bsp terrain which need adjust later.
Anyway a lot of work and a lot of time need here.