This map same as aim_random.
Its background map was used to arena_2005(many people will don't know this map. arena_2005 a my map that class selectable cs map.).
but, arena_2005 of cs:s has been deleted becuase of many problems, only background map was remained.
This map is RANDOM EQUIP weapons to all players that it'll give you some primary weapons, secondly weapons, grenades and armor. I don't know You will have weapons when round starts.
sorry. what the foul English.
Anyway. I hope you Enjoy with this map.