RS-28 Sarmat Satan 2 3D model is available on CGTrader for $74.8. Original author: byelaman. Specs: 11700 polys, 13200 verts.
BLEND (Blender, filesize: 429 KB), OBJ (OBJ, filesize: 230 KB), FBX (Autodesk FBX, filesize: 5.01 MB), 3DS (3D Studio, filesize: 205 KB), DAE (Collada, filesize: 289 KB), BIP (KeyShot, filesize: 4.75 MB)