Since there is the limitation of scaling inside the Crysis, I decided to make the right scale in SktechUp. I have tested the scale inside Crysis for nearly ten times. The method I used was to compare the height of door with the person inside Crysis game. Amazingly, the final scale of the building is only 12 mm in SketchUp

10594 mm when importing from Revit to SketchUp___The final Scale of the building, 12 mm in Sketchup