UNSC Rubicon

UNSC Rubicon is a prowler in service with the Office of Naval Intelligence. It went missing in June 2557 and was deemed lost shortly thereafter.

History
During a scouting mission to the ruins of Installation 00 in June 2557, UNSC operatives were pinged by a Forerunner signal. In response, Rubicon was deployed to the area from Luna, carrying specialist remote contact teams and ONI scientific personnel. Due to the damage dealt to the Ark's life support systems, the RCTs were forced to brave extremely hostile conditions on the surface in search of the signal's origin. Contact was lost with all teams after eight days; only RCT-06 returned, having sustained heavy casualties. However, they succeeded at recovering the beacon's source - the remains of 343 Guilty Spark, the former monitor of Halo Installation 04.

The science team questioned the damaged monitor on his origins, who obliged the humans due to their authority as Reclaimers. Over the course of the interrogation, Spark breached the Rubicon's firewall several times, much to the team's dismay. Spark powered down after concluding his story and his casing was subsequently ejected into space; unknown to the crew he had already transferred his consciousness to the shipboard computers. After subduing the onboard AI and taking control of the ship, he explained to the crew that he was going to resume his quest to find the Lifeshaper and to restore his old friends, Riser and Vinnevra, back to life. Asserting that the Lifeshaper was still alive, he put the crew to sleep and had the Rubicon proceed to her location.

Rubicon was recorded lost on July 2, 2557. Search-and-rescue teams were sent to the area after contact with Rubicon was lost, but they failed to find any trace of the ship.

Trivia

 * The ship is named after the Rubicon, a river in Italy known as the site where Julius Caesar uttered the famous phrase "alea iacta est" or "the die is cast" as he and his army crossed the river. Due to the historical significance of the event, "Rubicon" has become an idiom for a point of no return. Given this meaning, the name of the Rubicon may be a reference to another ONI vessel, the stealth cruiser.
 * According to Halo: Primordium, the ship (which goes unnamed in the novel) and its accompanying task force were involved in some form of fleet action toward the end of the interrogation of 343 Guilty Spark. The nature of this engagement is not elaborated upon in either the novel or the fourth Eleventh Hour report which further details the fictional context of the novel.

List of appearances

 * Halo: Primordium
 * Halo: Silentium