$149 Military Self Propelled Artillery Unit USSR Low-poly 3D model by andriiyermolenko. Available on CGTrader with 88610 polys and 46107 vertices. Check it out on CGHub.
OBJ (OBJ, filesize: 9.62 MB), MAX (Autodesk 3ds Max, filesize: 14.4 MB), C4D (Cinema 4D, filesize: 7.37 MB), MA (Autodesk Maya, filesize: 18.8 MB), UNITYPACKAGE (Unity 3D, filesize: 536 MB), FBX (Autodesk FBX, filesize: 20.7 MB), TBSCENE (Marmoset Toolbag, filesize: 21.3 MB), MEL (Maya Mel Script, filesize: 1.52 KB), UASSET (UnrealEngine, filesize: 1.13 GB), OTHER (Other, filesize: 1.13 GB), PNG (PNG, filesize: 1.24 GB), EXR (EXR, filesize: 1.24 GB)