Cyone

Cyone is a planet that will appear in Mass Effect 3. It is the site of the multiplayer map Firebase Reactor.

Description
The planet Cyone was assaulted more than a dozen times during the Krogan Rebellions by foes eager to gain access to its vast resources and specialized factories; however, it was never occupied by more than token forces before asari and turian allies drove the krogan out. Among the elite forces currently defending the planet are matriarchs that survived those attacks, and they have vowed that Cyone will never fall.