The tracks are NOT friction fit, use a bit of glue for them. Turret supports can be difficult to remove, use extreme caution, or you'll rip off the MG or some other accessory, I also included an empty turret and extra parts, for if you want to glue them on separately.
The turret should be able to rotate freely with little pressure.
The author remixed this model.
Added a cylinder and a gap to allow the turret to rotate, added smaller cylinders on suspension for easier fitting of the tracks. Simplified model to reduce file size by 90%, still extremely high resolution. Scaled it up to 1:50 scale, to better see details. separated machine gun and smoke grenade launchers so you dont need supports and it's easier to assemble.