Alexander sent us this link of the a virtual tour via Google Maps, of Airsoft Club "Stalker". Called the "Polygon No. 7" which is located in Ekaterinburg (Yekaterinburg) which looks like big indoor game site.  According to Alexander, Airsoft club Stalker is one of the oldest and biggest clubs in Russia. The club is located in the Urals, in the city of Yekaterinburg.