In the stadium at the Alte Foersterei football rules. In no other stadium fans can get closer to the action on the pitch.
Perhaps the proximity to the grass of the field is one reason that the fans of the first FC Union Berlin are very close indeed. In games the battle cry "Eisern Union" ("iron union") sounds from thousands throats, and the fans also helped energetically with the restoration of the ancient stadium.
Stadion an der Alten Försterei