Azraj-Nug, an Ongree who existed throughout the Cold War, followed the doctrines of Darth Revan, as did other Ongree. Agents dispatched by the reconstituted Sith Empire ultimately murdered him in an effort to obtain the Infinite Engine.
In the event that the player opts for the dark side path, Azraj-Nug, along with the other enslaved Ongree, meet their demise, and the Sith Empire gains possession of the Infinite Engine.