I really like this map!
My only suggestions are to add bot support by adding a nav mesh, because nav_generate doesn't generate working meshes for this map, and to change or remove the team coloured glow around the point. The team coloured glow just hovers above the ground in certain areas, and as the ground is all rock and snow, there is no place for it to be emitted from so it looks very unnatural. Most other KOTH maps don't have this, so I honestly think it isn't needed. Making it stick to the ground all the way around rather than hover would make it look better though.
Also, in certain areas things get culled out (I'm not sure the proper name, where sections of the map are blacked out) while you can still see them. This happens on the four "arms" reaching out from both spawns into the main play area, while looking toward the spawns.