UNC: Depot Sigma-23

Assignment Summary
Two alliance listening posts have been overrun by rachni, and both have recently received supply shipments from this depot. Investigate the depot to determine if it is the source.

Acquisition
This assignment is acquired from a terminal on Altahe, after completing the UNC: Listening Post Theta assignment. You must complete the UNC: Listening Post Alpha assignment first as well.

Walkthrough
Travel to the Gorgon system in the Argos Rho cluster. Board the Unidentified Space Facility. Eliminate the rachni aboard, and travel to the front of the ship. You will learn that Cerberus is responsible for the supplies and the rachni infestation from a crewman's logs. After listening to the logs you will be able to arm the ship's scuttle system, giving you a limited time to escape from the ship. New rachni will attempt to block your way as you escape in the limited time remaining. If you make it back to the Normandy within the time you will complete the mission.