Model created in 3D Studio Max 2009 and converted in multiple formats. All formats include materials and texture maps. The Max format uses mental ray materials and render. There's no need for a third party plugin or anything else, just drop your model in the scene and hit render.
The turret is a separate object and may be rotated at will.
The Heavy Tank M26 Pershing was an American heavy tank used during World War II and the Korean War. It was named after General John Pershing, who led the American Expeditionary Force in World War I.