Counter Strike Online Wiki

Sienna (de_sienna_cz) is an official bomb defuse map in Counter-Strike: Condition Zero and Counter-Strike Online.


Operation Sienna takes place in Sienna Town where the Counter-Terrorists must defend two targets from being bombed by the Terrorists by a C4. This map has many pathways and camping areas, making it harder to play.

Official description[]

Background: The town of Sienna is under high alert following new information gathered by the intelligence services. Access in and out of the town has been blocked to prevent a terrorist attack.

  • Terrorist: Identify the two vulnerable points of entry and gain access by detonating explosives near them.
  • Counter-terrorist: Prevent the Terrorists from destroying the gates and entering the town.

Release date[]

  • Turkey: 10 October 2013.
  • CSN:Z: 23 September 2014.
  • Vietnam: 26 March 2015.
  • Indonesia: 18 November 2015.



  • Sienna, or Siena, is a a city in Tuscany, Italy.
  • The designer of this map is the same as the map designer of Dust and Dust2.

External links[]