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1 - Arrival

Blasting through the Conduit at the conclusion of the Ilos: Trench Run map, the Mako will overturn and you'll be forced to put an end to Saren and Sovereign's plans on foot. Grab the contents of the nearby medical kit and get moving.


2 - Avina

Three former Citadel inhabitants charge you as Husks here. End their suffering, then turn your attention to the Avina console. The VI alerts you to the fact that the Citadel is experiencing severe system malfunctions across the entire level before giving you a full status report on the situation. Investigate the three topics available to you to learn that the Council has been evacuated to the Destiny Ascension ship and that Saren is currently somewhere near the Council chambers.


3 - Exit to Maintenance Shaft

As soon as you activate this elevator, a cutscene will trigger showing Saren manning the controls in the Citadel Tower while Sovereign crashes through the ships defending the Citadel in order to attach itself directly to the station. The elevator is supposed to bring you directly to Citadel Tower, but Saren locks the elevator down halfway through your ascent and your squad is forced to shatter the elevator's window and brave the elements along the exterior of the Citadel. This brings you to the Citadel Tower: Maintenance Shaft map.