Gustavo, I haven't played the map in UT (I don't think that I currently have UT installed) but good job on the good looking outdoor geometry.
If you're having BSP problems with this then there are some tricks you can use:
1. Make sure all verteces, even on the corners of nodes all rest on the grid. If you have two brushes which are intersecting each other, make sure the corners of the intersection also rest on the grid (because that defines where the corners of convex
nodes will generate on a visible surface.
2. If you are using a large subtractive brush for your outdoor area with your terrain geometry integrated onto that brush, remember that additives brushes and subtractive brushes structure the partitions of a map. If you have mountains with open volumes behind them making the process of structuring the partitions of the map tricky, (while maintaining the brushmodels' valid UE structure in whatever modeling program you are using by ensuring that the whole brushmodel is a continuous solid form without gaps or holes) consider separating the occluding geometric feature into a separate brushmodel and then adding it as a semisolid. This will make the partitioning process less complicated for the editor engines compiling process.
3. If you cannot find the means to properly keep solid intersecting verteces (where two or more surfaces on one or more brushes which clip through each other) on the grid, consider using semisolids for all or any additive brushes which can cause problems here.
I can offer you an example of a rather large outdoor map (spare a few BSP holes on unrelated/indoor parts of the map which I hadn't really got around to giving much tender loving care to, but probably won't be able to for a while due to juggling multiple commitments) which practices some of these tricks, and actually fixed the BSP problems that once occured on the parts of the map which now uses them. Though, the map is Unreal Gold 227J exclusive (can't remember which specific version of J and above that it runs on, but if you're a betatester I'd just recommend looking at it with the latest version of J).http://www.mediafire.com/file/begsffljd ... 1c.7z/file
(Example map only works in 227J for Unreal Gold).