If single you want to turn geometry I believe that the only that you need is the objects of classes Brush, Model, StaticMeshActor and StaticMesh. The properties of the objects of Brush class indicate the object of Model class to use and where and like placing it (position, rotation, scale and but things). The properties of the objects of StaticMeshActor class indicate the same but of a StaticMesh (that normally would be in a separate package). Also a StaticMeshInstance, a TerrainInfo and a TerrainSector that could to be necessary, but not like nor their format exist. My utility UTPT allows you to read the properties of the Brush and StaticMeshActor, but he is not completely compatible with the Model and StaticMesh of Lineage2 (there are changes in the format with respect to UT2004 and it is not ***reflxed mng well). If you want to try to find out the changes you can use the tool of analysis of objects of the UTPT to facilitate the work. In the maps an object of Model class also exists with a very great size, that it seems that is all the map already unified. Not if the equal sera format (deberia to be) and either like estara united. Luck!