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Battle of Sigma Octanus IV

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"We've come to take Sigma Octanus IV back from the Covenant. To do that, we're going to kill every last one of them."
— John-117

The Battle of Sigma Octanus IV was fought between the UNSC Defense Force and the Covenant in mid-2552.

Timeline

July 17, 2552

  • 0000 Hours: Ensign William Lovell, aboard the UNSC Remote Scanning Outpost Archimedes, reports to Sigma Octanus IV concerning a large silhouette in Slipspace heading for the system. It is suspected to be a group of Covenant ships but it could also be an asteroid.
  • 0300 Hours: The UNSC Iroquois arrives in system on patrol. The vessel's Commanding Officer, Commander Jacob Keyes, receives the sensor information and realizes it is a Covenant threat. He contacts FLEETCOM and informs them of the situation.
  • 0320 Hours: 4 Covenant ships consisting of 1 Covenant Carrier, 1 Covenant Destroyer and 2 Covenant Frigates arrive in the system. The UNSC Iroquois engages the enemy and requests reinforcements. The UNSC Gettysburg and UNSC Alliance respond and begin heading for Sigma Octanus.
  • 0330 Hours: The Iroquois destroys all Covenant vessels save for the carrier using a maneuver later known as the Keyes Loop. The carrier launches landing craft toward Sigma Octanus IV, then retreats into slipspace.
  • 0345 Hours: Covenant ground forces invade the city of Côte d'Azur on the planet.
  • 0500 Hours: 47 additional UNSC vessels arrive in the system. Admiral Michael Stanforth, aboard the UNSC Leviathan, takes command.
  • 0520 Hours: Reinforcements of 400 marines, led by General Kits, begin landing around Côte d'Azur
  • 0600 Hours: Covenant forces ambush and obliterate all marine forces on the ground. Only 14 enlisted men survive. Corporal Harland assumes tactical command.
  • 0625 Hours: Covenant vessels begin appearing on the edge of the system.
  • 0650 Hours: SPARTAN-IIs arrive on the surface to reinforce surviving marines.
  • 0900 Hours: Spartans assume tactical command on the ground.
  • 1800 Hours: Spartans and marines begin a counterattack on Côte d'Azur.
  • 2010 Hours: Spartans arm nuclear device below Côte d'Azur.
  • 2039 Hours: Nuclear warhead destroys all Covenant ground forces at Côte d'Azur.
  • 2120 Hours: General quarters is sounded aboard ships and the opposing Fleets close to engage.
  • 2130 Hours: Repair station Cradle moves to protect UNSC Fleet. First salvos are fired by Covenant vessels.
  • 0500 Hours:* All Covenant vessels either retreat or are destroyed. Battle concludes.

Space Battle

The battle in the space above Sigma Octanus IV has two stages. The first part of the battle consists of Commander Keyes taking his lone destroyer, the Iroquois to intercept the Covenant. However, Keyes faces a stronger force than he anticipated. Through brilliant maneuvers and some quick thinking, Keyes is able to destroy 3 of the 4 Covenant ships. For details involving this battle, see the Keyes Loop. Unfortunately, 1 of the ships manages to escape. This is significant because this is the first battle in which a Covenant ship has fled the battle. The pride and honor of the Elite Ship Masters obligates them to stay in a battle until they or all of the enemy are all destroyed. Keyes is perplexed by this but his superiors shrug off the revelation. This is one of the only space battles when the UNSC is able to win when outnumbered 4:1 ratio.

The second part of the space battle involves the UNSC fleet of 47 ships and lead by Admiral Stanforth against a smaller but technically stronger Covenant Fleet. This part of the space battle is unique in two ways. It is so because it is one of the few major victories that the UNSC has had in space (despite major losses) since Harvest was retaken. Also, in this battle, new tactics were used. One of the most prevalent was the usage of a refit station to provide cover for the UNSC fleet. Another is the staggered salvo tactic used by the UNSC fleet, allowing the first two sets of MAC rounds to disable the enemy's shields while the third punches through the ships.

Discrepancies

  • *Note: There is an apparent time discrepancy in the continuity of the Halo: First Strike as pertaining to the the exact times of the chapters. Chapter 19 begins at 600 hours while Chapter 20 begins at 1800, and it seems as though there is no significant lapse of time between them. Chapter 22 Begins at 2010 Hours and then Chapter 23 begins at 0500 hours, yet they all claim to have happened on July 17. This may have been a typo, with Chapter 23 meant to be on July 18 or a flashback of sorts.
  • Page 156 of Halo: The Fall of Reach states that the Repair and Refit Station Cradle was over a square kilometer and that three Destroyers could be eclipsed by its shadow. Exactly how it could cover the entire UNSC fleet present is not made clear. The UNSC ships may have positioned themselves behind the Cradle in a line for protection.
  • When the book talks of the battle for Sigma Octanus IV it says that there were dozens of ships but after the Cradle took the plasma torpedoes to give the fleet a chance to fire again it says that it was a 21 gun salute three times over. This hints that there may have been 63 ships in the human fleet as apposed to the 20 Covenant ships. This would make sense because the humans only win when there is a 3/1 count in there favor. Also the fleet took out twelve Covenant ships before the Covenant could take out one of theirs. So it was 8 to 48 or 63 depending on how you interpret the data. This raises the question of UNSC casualties. According to Captain Keyes there were eight remaining human ships that turned to help the Iroquois when a Covenant Destroyer tried to attack it.[1] So only nine human ships survived the battle, explaining why Keyes thought of the battle as an expensive victory.[2]

As a result of the battle, there was much debris left in orbit and in space around Sigma Octanus IV. Keyes thought that that could be dangerous in the future because it would be hard to maneuver.

Related Links

Ships

Characters

References

  1. ^ Halo: The Fall of Reach, page 199
  2. ^ Halo: The Fall of Reach
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