The Optum Series is a tractor model from Case IH made into the FS 23 Mobile truss. Quite a suitable version of the tractor in the game, but unfortunately not big, the monitor in the cockpit is not working.
The Case Optum tractor mod in version 14.03.24 received changes:
— Made the engine sound work (now you can hear it);
— Optimized it a bit, thereby reducing the size of the archive.