In his screening interviews, Tiran Kandros states he is named after an ancestor who captured a dreadnought in the Krogan Rebellions, and he was expected to live up to the name. After beginning boot camp at the traditional age of fifteen, Kandros rose through the ranks and was assigned to Sagirus Eight, one of the Hierarchy's counter-terrorism divisions.
Persistent rumors on the Nexus claim that Kandros was sent to investigate the Andromeda Initiative when the Hierarchy became suspicious about its activities. Kandros refuses to comment on former operations, citing family pressures as the reason he later joined the Initiative.
During the early days of the Nexus' arrival, Kandros left the station to act as protection detail for a prospecting team and was captured by the kett. He managed to lead several other captives in an escape and returned to the Nexus, eventually founding a volunteer militia to defend the station.