Because its rare that any branch uses any specialities or services from another branch... and some military big wig was jealous when he saw the army/marine snipers.
Air Force School Coimbatore was created in 1920.
The motto of Air Force School Coimbatore is 'Education Empowers'.
Air Force Bal Bharati School was created in 1955.
The Air Force School - Subroto Park - was created in 1955.
The Canadian Forces is comprised of the Canadian Army, the Canadian Navy, and the Canadian Air Force. A sniper would be Infantry personnel of the Canadian Army.
United States Air Force Academy Preparatory School was created in 1961.
U.S. Air Force Test Pilot School was created in 1944.
Royal Danish Air Force Officers School was created in 1951.
The motto of The Air Force School - Subroto Park - is 'Motto: Education Empowers'.
The motto of Indian Air Force Test Pilot School is 'Sukshamta Avum Utkarsh'.
It is currently 8 weeks according to the Air Force Portal
The Air Force Officer Candidate School ceased to exist after the graduation of its last class in June 1964. It has been replace, in a way, by the Officer Training School which is located at Maxwell Air Force Base at Montgomery, Alabama.