$10 Fortress 3D model by oztz. Available on CGTrader with 428066 polys and 212478 vertices. Check it out on CGHub.
BLEND (Blender, filesize: 3.91 MB), OBJ (OBJ, filesize: 31.6 MB), FBX (Autodesk FBX, filesize: 9.67 MB), STL (Stereolithography, filesize: 20.4 MB)