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{{Quote|We're not exactly like those artificial gods from the earlier generations. More like demigods. And I'll be damned if that usually isn't good enough.|[[Edward Buck]]<ref name="H:NB">'''[[Halo: New Blood]]''', Chapter 1</ref>}}
{{Quote|We're not exactly like those artificial gods from the earlier generations. More like demigods. And I'll be damned if that usually isn't good enough.|[[Edward Buck]]<ref name="H:NB">'''[[Halo: New Blood]]''', Chapter 1</ref>}}


[[File:HI-SpartanIV-Augmentations-Panels.jpg|thumb|250px|[[Sarah Palmer|Spartan Sarah Palmer]] undergoing her augmentation procedures.]]
[[File:HI-SpartanIV-Augmentations-Panels.jpg|thumb|250px|[[Sarah Palmer]] undergoing the augmentation process]]
The '''SPARTAN-IV Augmentation Program''' is the formal name for the biochemical and surgical [[Human augmentation|augmentation procedures]] performed on the [[SPARTAN-IV program|SPARTAN-IV supersoldiers]].<ref name="packet">'''[[Halo 4 Limited Edition]]''', ''[[Infinity Briefing Packet]]''</ref> As with the recruitment methodology of the SPARTAN-IV program, the scope of their augmentations hearkens back to the [[ORION Project]]'s less extensive physical enhancement more so than the decidedly more superhuman [[SPARTAN-II]]s and [[SPARTAN-III]]s,<ref name="frankie">[http://members.shaw.ca/laird2/temp/derp/interview.mp3 '''Frank O'Connor interview during San Diego Comic-Con 2012''' (1:15 - 2:10)]</ref> although several all-new procedures are also introduced.<ref name="HI2">'''Halo: Initiation''', ''[[Halo: Initiation Issue 2|Issue #2]]''</ref>
The '''SPARTAN-IV Augmentation Program''' is the formal name for the biochemical and surgical [[Human augmentation|augmentation procedures]] performed on the [[SPARTAN-IV program|Spartan-IV supersoldiers]].<ref name="packet">'''[[Halo 4 Limited Edition]]''', ''[[Infinity Briefing Packet]]''</ref> As with the recruitment methodology of the SPARTAN-IV program, the scope of their augmentations hearkens back to the [[ORION Project]]'s less extensive physical enhancement moreso than the decidedly more superhuman [[Spartan-II]]s and [[Spartan-III]]s,<ref name="frankie">[http://members.shaw.ca/laird2/temp/derp/interview.mp3 '''Frank O'Connor interview during San Diego Comic-Con 2012''' (1:15 - 2:10)]</ref> although several new procedures are utilized.<ref name="HI2">'''Halo: Initiation''', ''[[Halo: Initiation Issue 2|Issue #2]]''</ref>


==Background==
==Background==
Like [[SPARTAN-II augmentation procedures|the augmentations]] performed for the [[SPARTAN-II program|SPARTAN-IIs]] and the [[Project CHRYSANTHEMUM|improved procedures]] utilized in the subsequent [[SPARTAN-III program]], the SPARTAN-IVs underwent a series of procedures to enhance their physical capabilities. Unlike the Spartan-III augmentations, which were almost entirely based upon chemical injections as opposed to requiring the many highly invasive surgical implants that the SPARTAN-II program required, the SPARTAN-IV augmentations utilize chemicals and surgical procedures like those pioneered by [[Catherine Halsey|Dr. Catherine Halsey]] in the SPARTAN-II program. The technology used in the two preceding SPARTAN programs necessitated that the candidates meet exceedingly strict genetic qualifications as well as the application of the enhancements on preteens to avoid the catastrophic failure rates produced by the augmentation of adult subjects in the [[ORION Project]].<ref>'''[[Dr. Halsey's personal journal]]'''</ref> By the time of the initiation of the SPARTAN-IV program, the technology had advanced to the point that some of the previously dangerous procedures could be performed fairly safely on adults and without stringent genetic requirements. Due to the subjects' bodies no longer being in developing stages as well as their lack of genetic requirements, the process must be carefully custom-tailored for each individual.<ref name="HI2"/><ref name="hnb115">'''Halo: New Blood''', ''pages 115-117'' (Google Play edition)</ref>
Like their forebears, nascent Spartan-IVs undergo a series of procedures to enhance their physical capabilities. The augmentations are performed through a combination of chemical injections (like [[Project CHRYSANTHEMUM|those of the Spartan-IIIs]]) and invasive surgical implants (like [[SPARTAN-II augmentation procedures|those of the Spartan-IIs]]). The technology used in the two preceding SPARTAN programs necessitated that the candidates meet exceedingly strict genetic qualifications as well as the application of the enhancements on preteens to avoid the catastrophic failure rates produced by the augmentation of adult subjects in the ORION Project.<ref>'''[[Dr. Halsey's personal journal]]'''</ref> By the time the SPARTAN-IV program was initiated the technology had advanced to the point that some of the previously dangerous procedures could be performed safely on adults and without stringent genetic requirements. Due to the subjects' bodies no longer being in developing stages as well as their lack of genetic requirements, the process must be carefully custom-tailored for each individual.<ref name="HI2"/><ref name="hnb115">'''Halo: New Blood''', ''pages 115-117'' (Google Play edition)</ref>


==Augmentations==
==Augmentations==
While the enhancements have not been described in detail, they incorporate technologies originating from the prior [[SPARTAN programs]] as well as completely new additions.<ref name="HI2"/> However, because the SPARTAN-IVs' performance-enhancing physical augmentations do not produce as effective results as those of their predecessors, they are forced to rely more heavily on their [[MJOLNIR Powered Assault Armor (GEN2)|GEN2 MJOLNIR armor]].<ref name="frankie"/>
While the enhancements have not been described in detail, they incorporate technologies originating from the prior [[SPARTAN programs]] as well as completely new additions.<ref name="HI2"/> However, because the Spartan-IVs' performance-enhancing physical augmentations do not produce results as effective as those of their predecessors, they are forced to rely more heavily on their [[MJOLNIR Powered Assault Armor (GEN2)|GEN2 Mjolnir armor]] to compensate.<ref name="frankie"/>


{| class="wikitable"
{| class="wikitable"
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|-
|-
|Skeletal
|Skeletal
|Bones are infused with a substance which makes them virtually unbreakable and is described as tougher than steel, allowing survival in harder impacts.<ref name="HI2"/><ref group="note">This enhancement is likely derived from the carbide ceramic ossification catalyst drug given to the SPARTAN-IIIs.</ref> The joints are also reinforced or replaced while the bones are lengthened, making the subject several centimeters taller than they originally were.<ref name="NB14">'''Halo: New Blood''', Chapter 14</ref> The reinforcement is necessary as without it, simple actions such as jumping would result in the bones disintegrating due to the strain from the strengthened muscles.
|Bones are infused with a substance "tougher than steel" which makes them virtually unbreakable, allowing survival in harder impacts.<ref name="HI2"/><ref group="note">This enhancement is likely derived from the carbide ceramic ossification catalyst drug given to the Spartan-IIIs.</ref> The joints are also reinforced or replaced while the bones are lengthened, making the subject several centimeters taller than they originally were. The reinforcement is necessary as without it, simple actions such as jumping would result in the bones disintegrating due to the strain from the strengthened muscles.<ref name="NB14">'''Halo: New Blood''', Chapter 14</ref>
|-
|-
|Muscular
|Muscular
|Muscles are injected with a material that allows them to work harder without breaking the Spartan's skeleton<ref name="HI2"/><ref group="note">This enhancement may have been derived from the fibroid muscular protein complex drug given to the SPARTAN-IIIs, although given Frank O'Connor's {{Plain|[http://members.shaw.ca/laird2/temp/derp/interview.mp3 statement]}} about the inferiority of the SPARTAN-IVs' "mechanical" augmentations, it is likely to be less effective than the chemical given to the two previous Spartan generations, or has less potent effects due to the SPARTAN-IVs' adult physiques, much like some of the augmentations in the ORION Project. Aside from Frank O'Connor's statement, it can be inferred that the material grafted onto the subjects muscles' allows them to work three times harder based on Palmer's statement of a Spartan-IV being able to "outrun a horse". The average human can run at about 10 to 12 mph, which would imply that a IVs' speed would have to have been increased by about three times. It is also known that the muscles are augmented enough that the bones of the subject would be disintegrated while working if they are not reinforced.</ref>
|Muscles are injected with a material that allows them to work harder without breaking the Spartan's skeleton<ref name="HI2"/><ref group="note">This enhancement may have been derived from the fibroid muscular protein complex drug given to the Spartan-IIIs. However, given Frank O'Connor's {{Plain|[http://members.shaw.ca/laird2/temp/derp/interview.mp3 statement]}} about the inferiority of the Spartan-IVs' "mechanical" augmentations, it is likely less effective than the chemical given to the two previous Spartan generations, or has less potent effects due to the Spartan-IVs' adult physiques, much like some of the augmentations in the ORION Project. Aside from Frank O'Connor's statement, it can be inferred that the material grafted onto the subjects muscles' allows them to work three times harder based on Sarah Palmer's statement of a Spartan-IV being able to "outrun a horse". The average human can run around 10 to 12 mph, which would imply that a Spartan-IVs' speed would have to have been increased by about three times. It is also known that the muscles are augmented enough that the bones of the subject would be disintegrated while working if they are not reinforced.</ref>
|-
|-
|Neural
|Neural
|The nervous system is "super-myelinated" to decrease reaction time.<ref name="NB14"/><ref group="note">This enhancement may have been derived from the superconducting neural disunification solution drug given to the SPARTAN-IIIs.</ref>
|The nervous system is "super-myelinated" to decrease reaction time.<ref name="NB14"/><ref group="note">This enhancement may have been derived from the superconducting neural disunification solution drug given to the Spartan-IIIs.</ref>
|-
|-
|Corneal
|Corneal
|Corneal implants are provided, improving the subject's eyesight and night vision.<ref name="HI2"/><ref name="hnb115"/> The use of implants is a departure from the SPARTAN-III program's use of a retinal-inversion stabilizer drug to achieve the same effect.
|Corneal implants are provided, improving the subject's eyesight and night vision.<ref name="HI2"/><ref name="hnb115"/> The use of implants is a departure from the Spartan-III program's use of a retinal-inversion stabilizer drug to achieve the same effect.
|-
|-
|Pulmonary
|Pulmonary
Line 34: Line 34:
|-
|-
|Pancreatic
|Pancreatic
|Pancreas is replaced by a completely new, vat-grown organ<ref name="HI2"/>
|Pancreas is replaced by a new vat-grown organ<ref name="HI2"/>
|-
|-
|Cardiac
|Cardiac
Line 40: Line 40:
|-
|-
|Cardiovascular
|Cardiovascular
|Blood is altered to allow for faster clotting.<ref name="HI2"/> Subject's blood is modified to make them immune to most toxins.<ref name="NB14"/>
|Blood is altered to allow for faster clotting.<ref name="HI2"/> Subject's blood is modified to make the Spartan immune to most toxins.<ref name="NB14"/>
|-
|-
|Biological
|Biological
Line 46: Line 46:
|-
|-
|Cybernetic
|Cybernetic
|The subject is given a [[Spartan neural interface|specialized neural implant]] capable of interfacing with an [[AI]] alongside a significant number of implanted electronics.<ref name="NB14"/> They are also implanted with several monitoring devices to help medical teams keep tabs on them.<ref name="HI2"/>
|The subject is given a [[Spartan neural interface|specialized neural implant]] capable of interfacing with an [[AI]] alongside a significant number of implanted electronics.<ref name="NB14"/> They are also implanted with several monitoring devices to help medical teams.<ref name="HI2"/>
|-
|-
|}
|}


===Experimental phase===
===Experimental phase===
A series of additional augmentations were included in the earliest, prototypical phase of the program. These enhancements would have made the Spartans significantly stronger and more resistant to injury, the goal being that they could operate without MJOLNIR armor. However, these procedures proved to have an unacceptable casualty rate, killing or crippling nine of the ten initial candidates; the sole survivor, [[Ilsa Zane]], was rendered mentally unstable. Demonstrating the effectiveness of these experimental enhancements, Zane was able to engage a MJOLNIR-armored Sarah Palmer in hand-to-hand combat without the use of any protective equipment, and survived Palmer violently driving her head into a metal bulkhead face-first, as well as her subsequent prolonged exposure to the vacuum of space.<ref name="HI3">'''Halo: Initiation''', ''[[Halo: Initiation Issue 3|Issue #3]]''</ref>
A series of additional augmentations were included in the earliest, prototypical phase of the program. These enhancements would have made the Spartans significantly stronger and more resistant to injury, the goal being that they could operate without Mjolnir armor. However, these procedures proved to have an unacceptable casualty rate, killing or crippling nine of the ten initial candidates: The sole survivor, [[Ilsa Zane]], was rendered mentally unstable. Demonstrating the effectiveness of these experimental enhancements, Zane was able to engage a Mjolnir-armored Sarah Palmer in hand-to-hand combat without the use of any protective equipment and survived Palmer violently driving her head into a metal bulkhead face-first, as well as her subsequent prolonged exposure to the vacuum of space.<ref name="HI3">'''Halo: Initiation''', ''[[Halo: Initiation Issue 3|Issue #3]]''</ref>


==Procedure==
==Procedure==
The SPARTAN-IV augmentation procedures take three weeks to perform,<ref name="HI2"/> with recovery and subsequent training usually lasting several months.<ref name="packet"/> It took about two days for the Spartans to relearn how to walk again following their augmentations; additionally, significant disorientation was in evidence during their initial training exercises.<ref name="HI2"/>
The SPARTAN-IV augmentation procedures (at least at the onset of the program) take three weeks to perform,<ref name="HI2"/> with recovery and subsequent training usually lasting several months.<ref name="packet"/> It took about two days for the first team of Spartan-IVs to relearn how to walk again following their augmentations. Significant disorientation was in evidence during their initial training exercises.<ref name="HI2"/>


The augmentation procedures were conducted in a dedicated SPARTAN-IV facility on [[Mars]] and were noted to be quite painful.<ref name="NB14"/> There were approximately two dozen candidates being augmented and conditioned at any given time during the second SPARTAN-IV class, which [[Edward Buck]] was part of.<ref name="hnb115"/>
The augmentation procedures are conducted in a dedicated Spartan-IV facility on [[Mars]] and are considered quite painful.<ref name="NB14"/> Approximately two dozen candidates were augmented and conditioned at any given time during the second Spartan-IV class.<ref name="hnb115"/>


===Effects===
===Effects===
After her SPARTAN-IV augmentations, [[Sarah Palmer]] stated that the synthetic cardiac weave allows her to "outrun a horse". The enhancements performed on the lungs potentially allow a SPARTAN-IV to breathe [[methane]] for around an hour.<ref name="HI2"/> Nutrition-wise, it is also said that a Spartan could eat a raw tree and retain the equivalent of six meals' worth of calories in terms of energy.<ref name="NB14"/> According to [[Edward Buck]], the ocular implants enabled him to see in the dark and read the fine print on release forms "from across the room".<ref name="hnb115"/> The subject's hearing is also greatly improved.<ref name="hnb115"/>
Reflecting on her augmentations, [[Sarah Palmer]] stated that the synthetic cardiac weave allows her to "outrun a horse". The enhancements performed on the lungs potentially allow a Spartan-IV to breathe [[methane]] for around an hour.<ref name="HI2"/> Nutrition-wise, it is also said that a Spartan could eat a raw tree and retain the equivalent of six meals' worth of calories in terms of energy.<ref name="NB14"/> According to [[Edward Buck]], the ocular implants enable him to see in the dark and read the fine print on release forms "from across the room".<ref name="hnb115"/> The subject's hearing is also greatly improved.<ref name="hnb115"/>


However, the decision to augment adults as opposed to preteens comes at the cost of performance: the SPARTAN-IVs' physical augmentations do not produce as effective results as those of the preceding generations. To compensate for this shortcoming, the [[MJOLNIR Powered Assault Armor (GEN2)|GEN2 MJOLNIR armor]] worn by the SPARTAN-IVs is designed to multiply the wearer's strength and speed significantly more than the first-generation MJOLNIR. At least in theory, this makes a Spartan-IV clad in GEN2 armor equal to a GEN1-wearing Spartan-IIs in terms of strength and speed, but leaves the Spartan-IVs at a considerable disadvantage in comparison to their predecessors when out of armor.<ref name="frankie"/><ref>[http://www.gameinformer.com/b/features/archive/2015/06/11/halo-5-guardians-unmasking-the-fireteam-hunting-master-chief.aspx '''Halo 5: Guardians – Unmasking The Fireteam Hunting Master Chief''']</ref> The physical disparity between an unarmored Spartan-IV and Spartan-II has been compared to that between an elite-level athlete and a "near-supernatural monster".<ref>[http://www.neogaf.com/forum/showpost.php?p=167200983&postcount=566 '''NeoGaf''': ''Post by Frank O'Connor'']</ref> Likewise, Edward Buck speculated that the difference between the Spartan-IV's and their predecessors (the Spartan-II's and III's) in regards to their augmentations was similar to the discrepancy between demigods, the Titans, and their godly descendants respectively.<ref name="NB14"/>
However, the decision to augment adults as opposed to preteens comes at the cost of performance: the results of the Spartan-IVs' physical augmentations are not as effective as those of the preceding generations. To compensate for this shortcoming, the [[MJOLNIR Powered Assault Armor (GEN2)|GEN2 Mjolnir armor]] worn by the Spartan-IVs is designed to multiply the wearer's strength and speed significantly more than first-generation suits. At least in theory, this makes a Spartan-IV clad in GEN2 armor equal to a GEN1-wearing Spartan-II in terms of strength and speed, but leaves though the Spartan-IV would be at a considerable disadvantage without armor.<ref name="frankie"/><ref>[http://www.gameinformer.com/b/features/archive/2015/06/11/halo-5-guardians-unmasking-the-fireteam-hunting-master-chief.aspx '''Halo 5: Guardians – Unmasking The Fireteam Hunting Master Chief''']</ref> Spartan Edward Buck once compared the physical disparity between a Spartan-IV and a Spartan-II to that between an elite-level athlete and a "near-supernatural monster".<ref>[http://www.neogaf.com/forum/showpost.php?p=167200983&postcount=566 '''NeoGaf''': ''Post by Frank O'Connor'']</ref> Buck also compared the Spartan-IVs to demigods while respectively likening the Spartan-IIs and Spartan-IIIs to the Titans and gods of Greek mythology.<ref name="NB14"/>


Spartan-IVs must follow a rigid set of guidelines to maintain their physical fitness and health. These include undergoing regular medical examinations, including physiological scans, reviews and treatment before and after each mission. A Spartan-IV is expected to perform at optimum capacity with a minimum of two-and-one-half hours of sleep per a 48-hour cycle; for [[cryo-chamber|cryosleep]], standard UNSC practices apply. They are also instructed to follow standard UNSC [[physical training]] practices. Due to their augmented physiques, however, they are provided their own, custom-built gym equipment. Official meals are specifically prepared to meet the caloric, nutritional and medicinal needs of each individual Spartan. These personal needs are measured based on activity data recorded by the Spartan's individual physiometer. Ancillary medications may be provided to ensure the Spartan's well-being and to reduce risk of potential implant rejections.<ref name="packet"/>
Spartan-IVs must follow a rigid set of guidelines to maintain their physical fitness and health. These include undergoing regular medical examinations, including physiological scans, reviews and treatment before and after each mission. A Spartan-IV is expected to perform at optimum capacity with a minimum of 2 1/2 hours of sleep per 48-hour cycle; for [[cryo-chamber|cryosleep]], standard UNSC practices apply. They are also instructed to follow standard UNSC [[physical training]] practices. Due to their augmented physiques, however, they are provided their own, custom-built gym equipment. Official meals are specifically prepared to meet the caloric, nutritional and medicinal needs of each individual Spartan. These personal needs are measured based on activity data recorded by the Spartan's individual physiometer. Ancillary medications may be provided to ensure the Spartan's well-being and to reduce risk of potential implant rejections.<ref name="packet"/>


===Performance===
===Performance===
Training performance of the initial SPARTAN-IV batch in [[2553]] was decidedly underwhelming, something that was acknowledged by their recruiter, [[SPARTAN-III]] supersoldier [[Jun-A266]]. Part of this may be attributed to their still-ongoing acclimatization to their enhancements, as well as the group not having worked together before, although all of them did possess a military background. The majority of the first batch of SPARTAN-IVs were incapacitated by their baseline human [[UNSC Marine Corps|Marine]] training opponents, who outnumbered them ten to one, and their lack of coordination resulted in SPARTAN-IV program head, [[Commander]] [[Musa-096]], personally chastising them about the importance of teamwork<ref name="HI2"/> (a lesson the SPARTAN-IIs learned in their first days of [[SPARTAN-II training|training]] at the age of six).<ref>'''Halo: The Fall of Reach''', ''pages 42-43'' (2001 edition)</ref> However, several SPARTAN-IVs of this group later distinguished themselves in live combat during the [[New Colonial Alliance]]'s attempted takeover of {{UNSCShip|Infinity}}.<ref name="HI3"/>
Training performance of the initial Spartan-IV unit in [[2553]] was decidedly underwhelming, something that was acknowledged by their recruiter, Spartan-III [[Jun-A266]]. Part of this may be attributed to their still-ongoing acclimatization to their enhancements, as well as the group not having worked together before, though all of them came from military backgrounds. The majority of the first batch of Spartan-IVs were incapacitated by their unaugmented [[Marine]] training opponents, who outnumbered them ten to one, and their lack of coordination resulted in SPARTAN-IV program head, [[Commander]] [[Musa-096]], personally chastising them about the importance of teamwork<ref name="HI2"/> (a lesson the Spartan-IIs learned in their first days of [[SPARTAN-II training|training]] at the age of six).<ref>'''Halo: The Fall of Reach''', ''pages 42-43'' (2001 edition)</ref> However, several Spartan-IVs of this group later distinguished themselves in live combat during the [[New Colonial Alliance]]'s attempted takeover of {{UNSCShip|Infinity}}.<ref name="HI3"/>


Later combat performance also shows marked improvement to the training sessions of the initial group. During the [[2555]] [[mission to Talitsa]], Spartan [[Edward Buck]] fought [[Michael Crespo]] in hand-to-hand combat and shattered the visor of the latter's MJOLNIR GEN2 armor by pummeling it repeatedly. Spartan [[Kojo Agu]] killed multiple [[Insurrectionist]]s by throwing rocks at them before procuring a weapon from the fallen rebels.<ref>'''Halo: New Blood''', ''pages 161-166'' (Google Play edition)</ref> Agu subsequently assaulted a rebel stronghold singlehandedly, eliminating numerous Insurrectionist combatants.<ref>'''Halo: New Blood''', ''pages 170-172'' (Google Play edition)</ref>
Later combat performance also shows marked improvement to the training sessions of the initial group. During a [[2555]] [[mission to Talitsa]], Spartan [[Edward Buck]] fought Spartan defector [[Michael Crespo]] in hand-to-hand combat and shattered the faceplate of the latter's GEN2 Mjolnir armor by pummeling it repeatedly. Spartan [[Kojo Agu]] killed multiple [[Insurrectionist]]s by throwing rocks at them before procuring a weapon from the fallen rebels during the same mission.<ref>'''Halo: New Blood''', ''pages 161-166'' (Google Play edition)</ref> Agu subsequently assaulted a rebel stronghold single-handedly, eliminating numerous rebel combatants.<ref>'''Halo: New Blood''', ''pages 170-172'' (Google Play edition)</ref>


During the [[Requiem Campaign]], Spartan [[Gabriel Thorne]] was able to fight five Sangheili in close-quarters combat and successfully kill them before being subdued by two other Sangheili.<ref>'''Spartan Ops''' — ''[[Scattered|S1E6 Scattered]]''</ref> Thorne also took on a battle-seasoned [[Sangheili]], [[Gek 'Lhar]], in hand-to-hand combat and had the upper hand for a majority of the brawl, before having a boulder smashed on his chest and unprotected head, dazing him.<ref>'''Spartan Ops''' — ''[[Expendable|S1E8 Expendable]]''</ref><ref>[[:File:Thorne getting a boulder smashed in his face.png|Image showing Thorne also getting hit in the face as well as chest.]]</ref> Later on during the Requiem Campaign, Spartan [[Paul DeMarco]] was able to defeat multiple Sangheili and a [[Promethean Knight]] in close-quarters combat.<ref>'''Spartan Ops''' — ''[[Key|S1E9 Key]]''</ref> During the [[Battle of Ealen IV]], Spartan [[Naiya Ray]] took on and defeated a [[Sangheili Warrior]] in close-quarters combat.<ref>'''Halo: Escalation''' - ''Issue #2''</ref> While on a War Games simulation marathon, [[Sarah Palmer]] fought and killed a [[Hunter]] with her bare hands.<ref>'''Halo: Escalation''' - ''Issue #19''</ref>
During the [[Requiem campaign]], Spartan [[Gabriel Thorne]] was able to fight five Sangheili in close-quarters combat and successfully kill them before being subdued by two other Sangheili.<ref>'''Spartan Ops''' — ''[[Scattered|S1E6 Scattered]]''</ref> Thorne later fought [[Gek 'Lhar]] (who had previously killed several Spartans) in hand-to-hand combat and held the upper hand for a majority of the brawl, before having a boulder smashed on his chest and unprotected head, dazing him.<ref>'''Spartan Ops''' — ''[[Expendable|S1E8 Expendable]]''</ref> Later during the Requiem campaign, Spartan [[Paul DeMarco]] was able to defeat multiple Sangheili and a [[Promethean Knight]] in close-quarters combat.<ref>'''Spartan Ops''' — ''[[Key|S1E9 Key]]''</ref> During the [[Battle of Ealen IV]], Spartan [[Naiya Ray]] defeated a [[Sangheili Warrior]] in close-quarters combat.<ref>'''Halo: Escalation''' - ''Issue #2''</ref> While on a War Games simulation marathon, [[Sarah Palmer]] fought and killed a [[Hunter]] with her bare hands.<ref>'''Halo: Escalation''' - ''Issue #19''</ref>


==List of appearances==
==List of appearances==

Revision as of 20:05, September 26, 2015

"We're not exactly like those artificial gods from the earlier generations. More like demigods. And I'll be damned if that usually isn't good enough."
Edward Buck[1]
Sarah Palmer undergoing the augmentation process

The SPARTAN-IV Augmentation Program is the formal name for the biochemical and surgical augmentation procedures performed on the Spartan-IV supersoldiers.[2] As with the recruitment methodology of the SPARTAN-IV program, the scope of their augmentations hearkens back to the ORION Project's less extensive physical enhancement moreso than the decidedly more superhuman Spartan-IIs and Spartan-IIIs,[3] although several new procedures are utilized.[4]

Background

Like their forebears, nascent Spartan-IVs undergo a series of procedures to enhance their physical capabilities. The augmentations are performed through a combination of chemical injections (like those of the Spartan-IIIs) and invasive surgical implants (like those of the Spartan-IIs). The technology used in the two preceding SPARTAN programs necessitated that the candidates meet exceedingly strict genetic qualifications as well as the application of the enhancements on preteens to avoid the catastrophic failure rates produced by the augmentation of adult subjects in the ORION Project.[5] By the time the SPARTAN-IV program was initiated the technology had advanced to the point that some of the previously dangerous procedures could be performed safely on adults and without stringent genetic requirements. Due to the subjects' bodies no longer being in developing stages as well as their lack of genetic requirements, the process must be carefully custom-tailored for each individual.[4][6]

Augmentations

While the enhancements have not been described in detail, they incorporate technologies originating from the prior SPARTAN programs as well as completely new additions.[4] However, because the Spartan-IVs' performance-enhancing physical augmentations do not produce results as effective as those of their predecessors, they are forced to rely more heavily on their GEN2 Mjolnir armor to compensate.[3]

Nature Description
Skeletal Bones are infused with a substance "tougher than steel" which makes them virtually unbreakable, allowing survival in harder impacts.[4][note 1] The joints are also reinforced or replaced while the bones are lengthened, making the subject several centimeters taller than they originally were. The reinforcement is necessary as without it, simple actions such as jumping would result in the bones disintegrating due to the strain from the strengthened muscles.[7]
Muscular Muscles are injected with a material that allows them to work harder without breaking the Spartan's skeleton[4][note 2]
Neural The nervous system is "super-myelinated" to decrease reaction time.[7][note 3]
Corneal Corneal implants are provided, improving the subject's eyesight and night vision.[4][6] The use of implants is a departure from the Spartan-III program's use of a retinal-inversion stabilizer drug to achieve the same effect.
Pulmonary Lungs are lined with a polymer that enhances oxygen intake and allows the subject to process air-borne toxins or foreign gas mixtures[4]
Intestinal Intestinal bacteria are altered to enable the digestive system to absorb more nutrients out of food[4]
Pancreatic Pancreas is replaced by a new vat-grown organ[4]
Cardiac Heart is implanted with a synthetic weave which significantly increases its capacity to pump blood[4]
Cardiovascular Blood is altered to allow for faster clotting.[4] Subject's blood is modified to make the Spartan immune to most toxins.[7]
Biological Other than the brain, virtually all other organs in the body are either modified in some manner or replaced.[7]
Cybernetic The subject is given a specialized neural implant capable of interfacing with an AI alongside a significant number of implanted electronics.[7] They are also implanted with several monitoring devices to help medical teams.[4]

Experimental phase

A series of additional augmentations were included in the earliest, prototypical phase of the program. These enhancements would have made the Spartans significantly stronger and more resistant to injury, the goal being that they could operate without Mjolnir armor. However, these procedures proved to have an unacceptable casualty rate, killing or crippling nine of the ten initial candidates: The sole survivor, Ilsa Zane, was rendered mentally unstable. Demonstrating the effectiveness of these experimental enhancements, Zane was able to engage a Mjolnir-armored Sarah Palmer in hand-to-hand combat without the use of any protective equipment and survived Palmer violently driving her head into a metal bulkhead face-first, as well as her subsequent prolonged exposure to the vacuum of space.[8]

Procedure

The SPARTAN-IV augmentation procedures (at least at the onset of the program) take three weeks to perform,[4] with recovery and subsequent training usually lasting several months.[2] It took about two days for the first team of Spartan-IVs to relearn how to walk again following their augmentations. Significant disorientation was in evidence during their initial training exercises.[4]

The augmentation procedures are conducted in a dedicated Spartan-IV facility on Mars and are considered quite painful.[7] Approximately two dozen candidates were augmented and conditioned at any given time during the second Spartan-IV class.[6]

Effects

Reflecting on her augmentations, Sarah Palmer stated that the synthetic cardiac weave allows her to "outrun a horse". The enhancements performed on the lungs potentially allow a Spartan-IV to breathe methane for around an hour.[4] Nutrition-wise, it is also said that a Spartan could eat a raw tree and retain the equivalent of six meals' worth of calories in terms of energy.[7] According to Edward Buck, the ocular implants enable him to see in the dark and read the fine print on release forms "from across the room".[6] The subject's hearing is also greatly improved.[6]

However, the decision to augment adults as opposed to preteens comes at the cost of performance: the results of the Spartan-IVs' physical augmentations are not as effective as those of the preceding generations. To compensate for this shortcoming, the GEN2 Mjolnir armor worn by the Spartan-IVs is designed to multiply the wearer's strength and speed significantly more than first-generation suits. At least in theory, this makes a Spartan-IV clad in GEN2 armor equal to a GEN1-wearing Spartan-II in terms of strength and speed, but leaves though the Spartan-IV would be at a considerable disadvantage without armor.[3][9] Spartan Edward Buck once compared the physical disparity between a Spartan-IV and a Spartan-II to that between an elite-level athlete and a "near-supernatural monster".[10] Buck also compared the Spartan-IVs to demigods while respectively likening the Spartan-IIs and Spartan-IIIs to the Titans and gods of Greek mythology.[7]

Spartan-IVs must follow a rigid set of guidelines to maintain their physical fitness and health. These include undergoing regular medical examinations, including physiological scans, reviews and treatment before and after each mission. A Spartan-IV is expected to perform at optimum capacity with a minimum of 2 1/2 hours of sleep per 48-hour cycle; for cryosleep, standard UNSC practices apply. They are also instructed to follow standard UNSC physical training practices. Due to their augmented physiques, however, they are provided their own, custom-built gym equipment. Official meals are specifically prepared to meet the caloric, nutritional and medicinal needs of each individual Spartan. These personal needs are measured based on activity data recorded by the Spartan's individual physiometer. Ancillary medications may be provided to ensure the Spartan's well-being and to reduce risk of potential implant rejections.[2]

Performance

Training performance of the initial Spartan-IV unit in 2553 was decidedly underwhelming, something that was acknowledged by their recruiter, Spartan-III Jun-A266. Part of this may be attributed to their still-ongoing acclimatization to their enhancements, as well as the group not having worked together before, though all of them came from military backgrounds. The majority of the first batch of Spartan-IVs were incapacitated by their unaugmented Marine training opponents, who outnumbered them ten to one, and their lack of coordination resulted in SPARTAN-IV program head, Commander Musa-096, personally chastising them about the importance of teamwork[4] (a lesson the Spartan-IIs learned in their first days of training at the age of six).[11] However, several Spartan-IVs of this group later distinguished themselves in live combat during the New Colonial Alliance's attempted takeover of UNSC Infinity.[8]

Later combat performance also shows marked improvement to the training sessions of the initial group. During a 2555 mission to Talitsa, Spartan Edward Buck fought Spartan defector Michael Crespo in hand-to-hand combat and shattered the faceplate of the latter's GEN2 Mjolnir armor by pummeling it repeatedly. Spartan Kojo Agu killed multiple Insurrectionists by throwing rocks at them before procuring a weapon from the fallen rebels during the same mission.[12] Agu subsequently assaulted a rebel stronghold single-handedly, eliminating numerous rebel combatants.[13]

During the Requiem campaign, Spartan Gabriel Thorne was able to fight five Sangheili in close-quarters combat and successfully kill them before being subdued by two other Sangheili.[14] Thorne later fought Gek 'Lhar (who had previously killed several Spartans) in hand-to-hand combat and held the upper hand for a majority of the brawl, before having a boulder smashed on his chest and unprotected head, dazing him.[15] Later during the Requiem campaign, Spartan Paul DeMarco was able to defeat multiple Sangheili and a Promethean Knight in close-quarters combat.[16] During the Battle of Ealen IV, Spartan Naiya Ray defeated a Sangheili Warrior in close-quarters combat.[17] While on a War Games simulation marathon, Sarah Palmer fought and killed a Hunter with her bare hands.[18]

List of appearances

Notes

  1. ^ This enhancement is likely derived from the carbide ceramic ossification catalyst drug given to the Spartan-IIIs.
  2. ^ This enhancement may have been derived from the fibroid muscular protein complex drug given to the Spartan-IIIs. However, given Frank O'Connor's statement about the inferiority of the Spartan-IVs' "mechanical" augmentations, it is likely less effective than the chemical given to the two previous Spartan generations, or has less potent effects due to the Spartan-IVs' adult physiques, much like some of the augmentations in the ORION Project. Aside from Frank O'Connor's statement, it can be inferred that the material grafted onto the subjects muscles' allows them to work three times harder based on Sarah Palmer's statement of a Spartan-IV being able to "outrun a horse". The average human can run around 10 to 12 mph, which would imply that a Spartan-IVs' speed would have to have been increased by about three times. It is also known that the muscles are augmented enough that the bones of the subject would be disintegrated while working if they are not reinforced.
  3. ^ This enhancement may have been derived from the superconducting neural disunification solution drug given to the Spartan-IIIs.

Sources

  1. ^ Halo: New Blood, Chapter 1
  2. ^ a b c Halo 4 Limited Edition, Infinity Briefing Packet
  3. ^ a b c Frank O'Connor interview during San Diego Comic-Con 2012 (1:15 - 2:10)
  4. ^ a b c d e f g h i j k l m n o p Halo: Initiation, Issue #2
  5. ^ Dr. Halsey's personal journal
  6. ^ a b c d e Halo: New Blood, pages 115-117 (Google Play edition)
  7. ^ a b c d e f g h Halo: New Blood, Chapter 14
  8. ^ a b Halo: Initiation, Issue #3
  9. ^ Halo 5: Guardians – Unmasking The Fireteam Hunting Master Chief
  10. ^ NeoGaf: Post by Frank O'Connor
  11. ^ Halo: The Fall of Reach, pages 42-43 (2001 edition)
  12. ^ Halo: New Blood, pages 161-166 (Google Play edition)
  13. ^ Halo: New Blood, pages 170-172 (Google Play edition)
  14. ^ Spartan OpsS1E6 Scattered
  15. ^ Spartan OpsS1E8 Expendable
  16. ^ Spartan OpsS1E9 Key
  17. ^ Halo: Escalation - Issue #2
  18. ^ Halo: Escalation - Issue #19