the model have appliaded a meshsmoth with 2 Iteration so you can reduce the poly account when you need it, doors are grouped and rotate over its axis. The model do not use any map. The exported files do not show mesh errors.
Scene totals:
Ojects: 284
Shapes: 0
Ligths: 6
Cameras: 0
Helpers: 64
Space Warps: 03ds have:
Vertices: 75700
Faces: 122548
Obj file have:
Vertices: 64206
Polygons: 122354 | 
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