Fußballnationalmannschaft der DDR
Buschner played in the East German top-flight for Motor Gera and Motor Jena. He earned six caps for the East Germany national football team between 1954 and 1957, and later coached the team from 1970 to 1981. He was a Stasi informer under the codename "Georg" from 1966 to 1971. He was the coach when East Germany played in their only World Cup appearance in 1974, and produced one of their most famous victories upset by beating West Germany in the first round. He also led East Germany to the bronze medal at the 1972 Olympics and the gold medal in the 1976 Olympics.