Development of the new units was inspired by the development team's experiments ganesh chalisa download mp3 INI editing and combining existing units and weapons to create new ones. The generals system was originally supposed to appear in the base game. Regular factions seen in the base game are also available and are updated. Zero Hour added several new abilities to each side, and a new mode of play called the Generals Challengewhere the player takes on the identity of one of nine generals three representing each faction and does battle against most of the other generals, eventually confronting a powerful 'boss' general, General Leang.