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Sigma-Alpha Logo
Sigma Team
Unit Background
Role

Special Operations

Garrison

Earth

Unit Motto

Veneratio , Officium , Vitualamen
(Honour, Duty, Sacrifice)

Personnel
Unit size

Four Operators
(2558)

Current Commander
Subordinate Units
Current Status

Active

  [Source]


"I trained you. I taught you to fight, to kill. You didn't disappoint."
Richard Mack Senior


Sigma Team, also known as Sigma-Alpha, was a group of SPARTAN-II commandos recruited under the top-secret Project SIGMA that served during the Human-Covenant War. Sigma Team operated in secrecy for decades under the joint control of ONI and the UNSC as both frontline combatants and a covert operations unit. The team fought on many worlds between 2525 and 2552 and played a vital role in many UNSC victories while lessening the cost of any defeats wherever they served.

The team remained unbreakable throughout most of the war, and despite being from a program made secret even from Halsey's Reach-trained Spartans ended up playing a major role in a number of battles. Sigma remained active following the end of the war after takinga number of casualties, and would serve under the UNSC Navy's command instead of joining the Spartan branch.

Biography

Conscription & Training

In 2517 the future SPARTAN-II's were selected following a vaccination program across the colonies, with 150 potential candidates identified by the Office of Naval Intelligence. However, only half could be chosen due to budgetary reasons, and after being kidnapped they were taken to Reach for training. Despite this, ONI still continued to monitor on the remaining seventy-five and following some convincing, allowed for twenty other children to be abducted and trained on Earth in secret. This was Project SIGMA. The children were rigorously indoctrinated and educated under the command of ONI's Doctor Calvin Roe and were taught the art of combat, military strategy, and survival by various drill instructors and Lieutenant Colonel Richard Mack, a famed special forces hero. Over the course of eight years, these children would be moulded into humanity's finest soldiers much like their Reach-trained counterparts, forming bonds of camaraderie as they surpassed all expectations. Unlike those brought up as part of Catherine Halsey's program, the trainees within SIGMA were destined to serve under the direct command of the Office of Naval Intelligence to perform tasks no other soldiers or agents could accomplish, leaving the other SPARTAN-II's to undertake the monumental task of crushing human Insurrection.

At the age of fourteen in 2525, the SIGMA Spartans would go through a series of biological augmentation procedures identical to the ones those trained on Reach went through, albeit with the knowledge learned from the mistakes made in augmenting Doctor Halsey's group. After it was discovered that far fewer SPARTAN-II's from the Reach group had survived the procedures intact, the decision was made to use eleven of these Spartans - Sigma-Alpha - to assist in their fight against the Insurrection. Sigma-Alpha was told that the rest of their comrades had died during their procedures as a result. In reality, no deaths had occurred despite the heavily weakened state many augmentees were left in. Several weeks afterwards, two of the Spartans, Jack-085 and Ahmad-126, escaped their training facility and went on the run. Ahmad supposedly killed himself when he was cornered and Jack disappeared, not to be seen again for many years.

Battling Insurrection

In 2526, the nine remaining members of Sigma-Alpha were sent on their first mission to the colony world, Gallis, where there was heavy fighting with rebels. Their mission was to secure nuclear warheads that the rebels were threatening to use, and to rescue hostages. The team had a successful mission, wiping out the Insurrectionists. However, they discovered that there were no hostages; the rebels had been bluffing. The team were also not able to capture their elusive leader, who left a message mocking the Spartans, and an explosive trap that nearly killed Marco-035.

The Human-Covenant War

Sigma Team served in many different operations during the Human-Covenant War, and was always able to accomplish the mission no matter what. They fought on many world, many battlefields and always got out alive, never leaving a teammate behind. However, in 2550, that all changed in a massive engagement against Insurrectionists, that brought the team it's first two casualties, and a brush with a former member. Two years later, in early 2552, Sigma Team was stationed on the colony world of Harpa when it was attacked by Covenant forces. Sigma Team took two more casualties there, also losing Mack Sr. With a badly damaged ship, they were barely able to escape to Reach. Several months later, during an evacuation of a colony world, another member of the team, Resk-063, gave his life trying to save thousands of civilians from Covenant forces. This would be the third SPARTAN lost in a single year.

The Fall of Reach

Sigma arrived on Reach mere days before the main attack. As they were heading to an outpost via Falcon, they received a distress call from Tau Team, who had been attacked while investigating one of many communication arrays that went down across the planet. The team were surprised to find a Covenant attack force there, and managed to wipe out their foes, returning to command just as WINTER CONTINGENCY was declared by HIGHCOM following an attack on the Visegrad relay. Not long after, Spartan teams Sigma, Upsilon, Tau and Noble were deployed in a large counter-attack against Covenant landing forces in the area. Though successful on the ground, the UNSC were put into full retreat following the reveal of a cloaked Supercarrier above the battlefield. Following Operation:UPPER CUT, Sigma, accompanied by Tau Team, were sent on a mission, Codenamed Operation: DROPKICK. This was a follow-up to UPPERCUT. The team were to board and destroy a Covenant Supercarrier about to go into Reach's atmosphere. The Mission was successful, but at the cost of Frank-A103 and Dom-A178.

Not long after, they were deployed to New Alexandria to Evacuate a VIP, Dr. Calvin Roe, the man who had them kidnapped and trained. However, as the three teams got to the building the Doctor was in, they came under heavy attack by Covenant forces. Wulf-041, Dan-A105, Eugene- A133 and Chris-A189 entered the building to clear out covenant forces and extract the VIP, while the others provided covering fire from Falcons. However, Dr. Roe only needed the Spartans' assistance to provide cover for his escape, and detonated the building, supposedly killing Wulf and the others. As Roe sped away, Kane-098, as the ranking Officer, ordered the Spartans to pursue him out of New Alexandria.

Leaving the city mere hours before it's final glassing, They pursued Roe to Outpost Foxtrot Whiskey. As they approached, several banshees began pursuing them. Dr. Roe, knowing that the Spartans were chasing him, landed, and killed his ODST bodyguard, taking his armour. He then ordered the several Rocket Warthogs stationed on a cliff side to fire upon the approaching Falcons, saying that they had been seized by the enemy. The warthogs unleashed a salvo that destroyed the lead Falcon, killing Sal-A142. The surviving falcons, still pursued by banshees, flew past, causing the warthogs to be destroyed by banshee fire. Upon landing at the base, The Spartans began looking for Doctor Roe, who attempted to board a warthog, but was stopped by Alex-A121. Roe attempted to run, but was quickly surrounded. Despite trying to reason with the Spartans, Roe was killed by Marco-035, who believed him responsible for the deaths of Wulf, Dan, Eugene and Chris.

Several hours later, more UNSC forces arrived at the base from New Alexandria. The last group warned the Spartans that Covenant forces were on the way. Rallying the troops, Kane-098 devised a plan: He and Martin-A136 would stay at base along with snipers to provide cover. Jax-007 would lead a tank-led charge along the right flank, while Marco-035 led infantry up the left. If things were going badly, they would use their Falcons to escape the base. Eventually, a large enemy force arrived not far away from the outpost. Wraiths bombed the area, and squads of elites began charging in. With heavy losses, the Spartans held their own until several enemy Ghosts and Revenants arrived. By this time, Kane-098 had joined the fight up front. He was almost killed by a Revenant had it not been for Dorian-A188, with a Dropshield. As they began to push towards the hill, Dorian was killed by a Plasma launcher. Marco-035 also used Armour Lock to save himself. Eventually pushing through a cave, the Spartans were able to wipe out the last covenant forces on a small island, winning the battle.

Back at the base, Martin-A136, whose wounds had been temporarily healed with Biofoam, intercepted communications from the UNSC Pillar of Autumn, about their preparations to leave the plane, and that any remaining UNSC forces should join them soon. when the others arrived, Martin told them the news, and they flew towards the shipyard. When they arrived, however, the Pillar Of Autumn had only just left, leaving behind a large amount of Covenant, most of whom began to head towards Sigma's location.After checking a terminal Kane-098 saw that there was a single Frigate left nearby: The UNSC Bright New Day.

To slow the Covenant down, Jax-007, Nelson-A122, Jordan-A111 and Alex-A121 volunteered to stay behind and hold them off until the frigate was in the air. Kane-098, Marco-035, Martin-A136 and Louie-A199 travelled to the frigate, where they met up with the survivors of Whiskey-04. In the ensuing battle, both Jordan and Nelson are killed. Jax and Alex managed to commandeer two banshees and fly into the frigate's vehicle bay. The Bright New Day was able to escape Reach as it was being glassed.

Return to Earth

After some time, the Spartans returned to Earth to find it under attack by Covenant forces. So, Kane decided to set the ship on a collision course with a nearby Covenant cruiser as it came towards Earth. At the last moment, the ODST's and Spartans launched the Frigate's SOEIV's, falling to Earth moments before the Day impacted and destroyed the enemy ship. The team landed on the outskirts of Moscow, Russia, where they fought a bloody battle before returning to PILLAR base, which would serve as their base of operations for the next few months. The SPARTAN-II's and III's split up during the Battle of Earth and fought across the globe until the war finally ended in early 2553.

Post-War

Following the end of the Human-Covenant War, Sigma Team was divided once more. Martin and Louie were reassigned to solo operations by ONI against pockets of Covenant resistance in the rebuilding Outer Colonies, while Alex was placed in charge of a Remote Contact Team for some time. While the Spartan Branch had been created to accommodate the SPARTAN-IV Program, Sigma Team remained under the UNSC Navy's jurisdiction and continued the fight against Covenant and Insurrectionist targets for the next few years.

Sigma2558

Sigma Team in January of 2558.

Despite their losses in the war's final years, the three Spartans showed no signs of slowing down and welcomed the opportunity to return to duty after their brief reprieve at the end of the war. They would continue to serve with distinction as new threats emerged in the post-war galaxy. They would go on to fight not only against the large Covenant faction serving under Jul 'Mdama, but also terrorist groups such as the New Colonial Alliance and True Vanguard. Following the discovery of Requiem in 2557, Sigma sound found themselves deployed to numerous freshly-discovered Forerunner sites as Promethean constructs began to appear alongside Covenant foes.

The following year, Sigma would eventually be rejoined by Wulf-041, who had survived a near-death experience on Reach and served under a rogue ONI faction known as Red Cell for several years before Sigma helped shut down their insurgency before bringing him back into the fold. By late October of 2558, Sigma's four members were stationed in the Inner Colonies while awaiting new orders, and found themselves separated after the Created launched their assault on the Sol System.

Team Rosters

Original Team (2525-August 2552)

The initial group formed shortly before Sigma's first combat mission in 2525, this nine-man group would operate undisturbed for over twenty-five years without a single loss. Commanded by Fenn-145 for much of the war, this iteration of Sigma was a devastating force on the battlefield and often operated in smaller groups for maximum efficiency. Seeing some of the bloodiest years of the Human-Covenant War, Sigma fought on the frontlines on many occasions until the loss of two of its members in 2550, after which it was withdrawn for more defensive operations.

With three deaths in the first half of 2552, including its leader, Sigma was reformed yet again into a smaller strike team by the time of the Fall of Reach. This battle would see another Spartan go missing in action as Sigma cooperated with several of its SPARTAN-III 'successor' teams, though the heavy number of casualties in August prompted Kane-099 to fold several new members into the group after their escape from Reach.

Sigma Team Members
Call Sign Image Name Rank Status
Fenn Face
Sigma One
Fenn-145
Fenn-145 Master Chief Petty Officer
KIA
Kane Face
Sigma Two
Kane Mark5
Kane-098 Senior Chief Petty Officer
Active
Jacob Face
Sigma Three
Jacob-076
Jacob-076 Chief Petty Officer
KIA
Jax Face
Sigma Four
Jax 2552
Jax-007 Petty Officer First Class
Active
Resk Face
Sigma Five
Resk-063
Resk-063 Petty Officer Second Class
KIA
Wulf Face
Sigma Six
Wulf-041
Wulf-041 Petty Officer Second Class
MIA
NefFace

Sigma Seven
Nef-015
Nef-015 Petty Officer Second Class
KIA
AmyFace

Sigma Eight
Amy-133
Amy-133 Petty Officer Second Class
KIA
Marco Face

Sigma Nine
MarcoEQ4
Marco-035 Petty Officer Second Class
Active

Second Team (August 2552 - May 2558)

Formed from the surviving members of teams Sigma, Upsilon and Tau, the second iteration of Sigma-Alpha would operate independently for some time after the Fall of Reach, participating in several battles without an officer to command them as they made their way back towards the Sol System. Its six members would arrive in time for the Battle of Earth and survived until the end of the war without any further casualties. Shortly after the war's end, Sigma's SPARTAN-III members would be reassigned to separate positions, leaving the group with only three operators. Lacking the numbers for frontline combat, it Sigma would now specialise in covert operations and remained as an effective group under ONI's direction for nearly six years, until the Red Cell Insurgency saw the return of a missing Spartan.

Sigma Team Members
Call Sign Image Name Rank Status
Kane Face
Sigma One
KaneH5
Kane-098 Master Chief Petty Officer
Active
Jax Face
Sigma Two
JaxH5
Jax-007 Senior Chief Petty Officer
Active
Marco Face
Sigma Three
MarcoH5
Marco-035 Chief Petty Officer
Active
Alex Face
Sigma Four
Alex MKVIII
Alex-A121 Petty Officer First Class
Reassigned
Louie Face
Sigma Five
Louie MKVIII
Louie-A199 Petty Officer Second Class
Reassigned
Martin Face
Sigma Six
Martin MKVIII
Martin-A136 Petty Officer Second Class
Reassigned


Third Team (May 2558 onwards)

Sigma Team's third iteration would be formed after the return of Wulf-041 in late May of 2558. Now up to four members, it would spend several months working to track down Insurrectionist groups in the Outer Colonies before returning to the Sol System just prior to the outbreak of the Created Conflict in October.

Sigma Team Members
Call Sign Image Name Rank Status
Kane Face
Sigma One
KanePose
Kane-098 Master Chief Petty Officer
Active
Jax Face
Sigma Two
JaxCrop5
Jax-007 Senior Chief Petty Officer
Active
Marco Face
Sigma Three
SPARTAN MARCO-025
Marco-035 Chief Petty Officer
Active
Wulf Face
Sigma Four
Wulfcrop
Wulf-041 Petty Officer First Class
Active