$79 2cm Flak 38 with SD AH 51 - Trailer 3D model by Panaristi. Available on CGTrader with 144434 polys and 129341 vertices. Check it out on CGHub.
OBJ (OBJ, filesize: 8.47 MB), 3DS (3D Studio, filesize: 2.12 MB), C4D (Cinema 4D, filesize: 2.48 MB), FBX (Autodesk FBX, filesize: 7.05 MB), LWO (Lightwave, filesize: 2.24 MB)