T-64 T-80 MZ Simplified Carousel Autoloader 3D model is available on CGTrader for $6. Original author: Maccnificient-Macc. Specs: 200000 polys.
STL (Stereolithography, filesize: 36.9 MB), OBJ (OBJ, filesize: 36.9 MB), BLEND (Blender, filesize: 36.9 MB), FBX (Autodesk FBX, filesize: 36.9 MB), GLTF (glTF, filesize: 36.9 MB)