Hi There,
COngrats on your new ride, its a beast in the desert accompanied by right tire and driver. If you new to desert my strong recommendation to venture out with someone who knows desert driving and fully equipped with desert gears. You are much better off to start learning desert driving in any of the offroad club in dubai. There are plenty of offroad club to join for free: emarat4x4, dubai desert club, arabian offroad, almost 4x4 etc.