Hassan was the Brotherhood of Nod's supreme general in the eastern hemisphere prior to the Second Tiberium War. A "would-be Pharaoh", he ruled over the largest Nod splinter faction from a stronghold in Cairo, Egypt. Hassan secretly was in league with the Global Defense Initiative, as he brokered a deal with GDI general James Solomon, who helped him to stay in power in exchange for maintaining the status quo in GDI's favor.

In order to ensure his continued primacy within the Brotherhood, Hassan cut a deal with GDI's general Solomon - in return for intel on Nod activities, GDI would allow him to lead the Brotherhood.

Hassan was a weak ruler, keeping the Brotherhood away from total oblivion by the thinnest of hairs. He also acted as GDI's cleaner, removing the most dangerous elements of Nod on Solomon's behalf, typically by killing them.