The OSNAZ are engaged in radio intercept of the messages of foreign communication networks and radio nodes of the enemy troops in the field.
A bat on a globe became the official symbol of the military intelligence and some special forces units in 1993.
The image of a bat was first used by the Royal US Air Force during World War I.
Later it was also used by the US Marine Corps.
And during World War II the image of a bat spread in the air forces of Canada and the South African Union.
Ukraine and Belarus still use a “bat” on sleeve insignia.