 Complete the following phrase:  Berger joined the national biathlon team in 2001. During the 2004 Biathlon World Championships in Oberhof, Germany, he won silver medals in the 15 km mass start and the 4 × 7.5 km relay. Berger also won two gold medals in the military world championships that same year cross-country and patrol. Berger finished fifth in the 2004 overall World Cup, and won several gold medals from the Norwegian Biathlon Championships. At the 