Some high-ranked personnel of our organization have taken the decision to swap sides, to betray us, to betray humanity, to turn away from mankind. They have done a revolution within our facilities on Noveria. They think humanity can coexist with others alien species. They are wrong. We have tried to make them realize how wrong they were, and see how mankind is superior to every other species in the entire universe. But they refuse to see the truth. Now we have no other choice but to take back our facilities by force, and purge our ranks from thoose impure traitors. Cerberus has no place for the weak like them. We shall restore our control on Noveria. Your objective, my loyal soldiers, is to clean our facilities on Noveria, and eliminate the traitors. But beware: those facilities must not be damaged, as they contain valuable technology. So, the use of heavy weaponry such as rocket-launchers is restricted and prohibited. But don't show any mercy on them, they have chosen to betray mankind. Kill them all, and don't forget: HUMANITY FIRST!