Career
Mushnikov began his career in January 2000 on youthside with PFC CSKA Moscow and was 2010 promoted to the reserve team In Spring 2011 joined to Russian Second Division side Football Club Irtysh Omsk and made on June 8, 2011 in a game against Football Club Metallurg-Kuzbass Novokuznetsk his senior debut. He signed on 25 August 2011 for Lithuanian side FK Šiauliai and made his full debut in the A Lyga on 27 August against FK Kruoja Pakruojis.