Importing SHAR maps into Blender with correct lighting.

Hey all,
I'm trying to import level 2 into Blender, I've got everything in and textured, I just can't seem to figure out a way to get (what I can only describe as) the ambient occlusion (shader?) inside of Blender so the map doesn't look as flat. Please see my examples below.




Any help would be appreciated, thanks!

If I understood correctly, the thing you call "ambient occlusion" is called "vertex colors". They can be viewed and edited in Vertex Paint mode in Blender (switch from Object Mode in upper left corner)