Check out BM-30 Smerch Russian Vehicle Low-poly 3D model on CGTrader for $20. High-quality mesh by RealTimeX: 18223 polys, 21325 vertices. Textured, UV Mapped.
OBJ (OBJ, filesize: 4.21 MB), MA (Autodesk Maya, filesize: 4.21 MB), FBX (Autodesk FBX, filesize: 5.19 MB), PNG (PNG, filesize: 20.8 MB)