The main task of the Krug system was to test the parameters of the ionosphere and to determine the best operating frequency for theDuga-3 (Russian Woodpecker).The optimal propagation frequency depended on the current ionosphere condition, which changes within the day and is direction dependent. It consists of large antennas in a diameter of about 300m.In the center of the circle there's a one-storied building with reception equipment. The Soviets are now aware of your presence after the destruction of the Duga-3 array so resistance will be much larger. You must destroy the electronic reception equipment in the Krug building to guarantee total deactivation of the arrays.. Good Luck!!
