This ufo design is mainly based on the Haunebu 4 UFO from the second world war. The modified shape makes a much more recognizable ufo shape from all angles than the Original Haunebu design and looks great in 3D renderings.
There are 2 models in the zip file. 1 with tripod legs extended and the other has the legs retracted.
This model uses turbosmooth and normal smooth modifiers.