You serve the good of your country and your unit - this missile defense base. Your goal - to prevent the penetration of enemy combat vehicles to the territory of your country. Use your arsenal so as to prevent the event of total war. Shoot missiles, enemy aircraft so aptly to get into the enemy to move equipment from the first volley of fire, not allowing them to come even come close to the borders of your database. At the end of the operation were counted destroyed vehicles.