Operation F: Hydra is the sixth operation of Halo: Spartan Assault. It was released on August 29, 2013, in the form of a title update. Adding five new missions, it focuses on Sarah Palmer embarking on a mission to the core of X50 to discover the source of an alien signal.
The download includes support for Xbox 360 controllers to be used for the game.[1]
Missions
Transcript
So I killed Merg Vol and we all went home? Is that the official version these days?
Ha. You ought to see what came next.