While Fail Shep is pursuing Saren, Sovereign and the geth fleet are massacring the Citadel's defenders. The Council evacuate onto their flagship, the Destiny Ascension.
Fail Shep confronts Saren and kills him in a firefight. He is then faced with a choice: have the Alliance Fleet save the Destiny Ascension and the Council at the cost of Alliance ships that may be needed to destroy Sovereign, or let the Council die in order to ensure victory. Fail Shep chooses to save the Council.
Sovereign is destroyed and the geth are routed. The Council is grateful and allows humanity to join them. Fail Shep recommends Ambassador Udina as the first Human Councillor.
Next update will summarize my actions during ME1.