$125 Submarine Shivalik Low-poly 3D model by digitalagents. Available on CGTrader with 8760 polys and 8823 vertices. Check it out on CGHub.
MA (Autodesk Maya, filesize: 3.63 MB), OBJ (OBJ, filesize: 2.04 MB), FBX (Autodesk FBX, filesize: 501 KB), MAX (Autodesk 3ds Max, filesize: 2.78 MB)