"They are our first step into ascended species. They rose from mortal men and women. Thus, they became our fearless soldiers. As they are the first and last line of defense for humanity."
-Sparius Fara, the creator of the first transhuman soldiers. M22. 182
-Overview-
Solar Guardian, the created transhuman soldiers, dated back to the Federation's founding in early M22. They are ranked 4th among the Five Transhumans Pyramid.
Whenever Imperial Citizens reached 45, they served in the military for several years before returning to society with their transhuman capability.
They could live impossibly long, processing information in seconds, and most importantly, they are much mightier than mortals.
-Biology-
Since its founding, they received countless upgrades with more advanced genetic templates produced by Luna.
{Implants/Enchantements}
1) Echarius Heart: A twin heart psychic-bionics planted deep into the Solar Guardian's chest. It had been a long dream for humanity to have many lives, and this augmentation had provided them with psychic conduits that prolonged their lifespan and even pale images of resurrection.
2) WAR-CASTER: Augmentations that are directly placed on the brain, replacing some part of it with an imbued bionic brain. This, combined with bio enchantment, made the brain of Solar Guardian into Quasi-Matrix. This enables them to fully operate all of their suits and bionic augmentations. Thus, preventing them from going insane.
3) Third Lungs: A lung much smaller than the original, designed to provide additional oxygen. This lung also could become the total replacement when the primary lungs are damaged. It also filters all kinds of substances that are deadly to Solar Guardian.
4) The Undying: Bionic muscle implanted in the Guardian's body, creating more endurance and raw power. When damaged, it can regenerate faster than normal muscle.
5) The Devour: A complete replacement or modification of the digestive system. It allows the Solar Guardian to eat almost any physical material in the universe.
6) The Omnicopiea: It is directly connected to the Devour. It can extract a portion of the eaten substance to apply for the Solar Guardian physiology. It was only able when the said substance was compatible with the Guardian's enchanted DNA. Non-edible material could also be included.
7) Tiarium: The skeleton must also improve when the muscle strengthens. In nature, it was nearly bionic. To be true, it was a skeletal muscle enchanted with reactive Omniphages. It is also connected to Omnicopiea whenever a compatible metallic substance is found, strengthening the skeleton with the said substance.
8) Riolin Ears: War could be very devastating. This enchantment made the Solar Guardians could receive extremely deafening sounds, changing them instantly into a tolerable sounds. It also made various noise frequencies that could be heard by Solar Guardian and directly sent to WAR-CASTER to decipher.
9) Cyclops: Eyes are essential for humanity; thus, it enchanted them to the degree it capable of a nearly perfect vision when the dark came. Increased sensitivity to follow the Guardian's reflex.
10) The Glarion: It was a bionic spine that replaced the organic one. This spine connected Guardian's nervous system and sent it directly to the brain. It made the user reflects speed was impossible to follow with a mortal's eyes.
11) The Purifier: It was a purely mechanical organ the size of a thumb in Guardian's lower chest. It is used to purify any dangerous substance within the Solar Guardian's body and keep the purity of the owner's DNA, and genetic template to perfectly regenerate into their template's peak. Came from Aeldar, and various Xenos weaponry, leading to the creation of this mechanical organ.
12) Aushterius Brane: Mankind's evolution into a psychic race is unavoidable. Thus, they must be prepared for it. It was an additional organic organ connected to the WAR-CASTER, Glarion, and Echarius Heart. It was a bizarre enchantment that temporarily turned the owner into a pseudo-psyker. This usage is dangerous as time is activated to prevent the Solar Guardian to consumed by his own power.
13) Ebon Carapace: Planted to cover the entire Guardian's chest, growing with time to cover the entire owner's nervous system. It allows the Solar Guardian to control every piece of equipment at their full potential.
14) The Valexus: It was one last resort organ deep within the Guardian's body. It activated whenever the Solar Guardian endured mortal wounds that might kill them. The organ immediately puts the injured soldier into a suspended animation whenever it happens, forcing the Guardian's regenerative capability to extend to its most extensive uses.
15) Vagras Calexis: An organ made from the user's DNA material and psychic link. It is only active when Empyrean corruption is detected within the Guardian's body. This organ will combat the Empyrean corruption to a certain degree, providing the Solar Guardian with resistance to Chaos-cursed power.
16) The Prothean: Located not far from the Devour, this bionic organ could produce a significant amount of bionic Omniphages that served the Guardian's healing power. Whenever the user is injured, the Omniphages will close the wound instantaneously. It can also regrow lost limbs as long it is in its range of recovery.
17) Astarte Shield(Female only): This particular enchantment is only implanted for female Guardian. It served one purpose: To protect a female's ovaries from any potentially dangerous substance. This implant also made the female can control her menstruation cycle. Since the introduction of the Coordinator gene modification, the female reproductive age has extended to one hundred years old, making this implant invented in the first place.
-Additional enchantments-
Even all of the Imperial Citizens will receive prior enchantments. Those who desired to serve their life in the military would receive additional enchantments when their serving period ended.
1) FERRUS-BELLUM: This mechanical implant is planted in the WAR-CASTER. This implant will make the Solar Guardian directly connected to the Ferrous Mind. With this total synchronization, the Solar Guardian would achieve a height that exceeds their designed template. Their implants' function shall grow astronomically, giving them inhuman power. Their offensive, defensive, and regenerative potency will make them a perfect killing machine.
2) Glaxial Battery: It was not technically an implant. It was a living battery the size of a small golf ball. This battery will give the Solar Guardian additional power to maximize their implants and psychic prowess. It was rechargeable with Echarius Heart.
-Standard Equipment-
•) Mark VII Allarus Nanosuit.
A suit that consisted of trillions of Omniphages created from Imperium's mastery over nanotechnology. An armor that became Solar Guardian standard issue protection. Whenever it did not use, the armor can transform into a fist-sized cube with the owner's psychic link.
The suit came with various utilities crafted for the perfection of Solar Guardian combat prowess.
1) Grav-Alivator: This device is located on the chest area of the armor. When activated, the wearer will be enveloped in an anti-gravitational field that will make the user fly at a short distance at 2.100km/hour and perform a drop attack with the entire gravitational force.
2) Symbiote Muscle: Even after the extensive enchantments and implants, the suit boosted the Guardian's power and speed to other heights.
3) Ion Shield: It comes with two layers of shield energy. One is a full-body shield covering the Solar Guardian's armor, and the second is an existing barrier around the user. It was the image of Void Shield's function, yet it was much weaker but less costly to mass produce.
4) Reflective Shield: A cloaking device that manipulates both Materium and Immaterium to make the user bend reality to cast the illusion so that the user vanishes entirely.
5) Rear-Warp: This is another cloaking device designed to conduct direct operations and contact within the enemy territory. This device could alter reality perception to serve the user's intention well.
6) Life-support system: There is a time when Prothean fails. As the nature of the Solar Guardian to use their armor, this system will keep them alive even longer. With uncountable bionic Omnihages and a portion of medical STC, Solar Guardian will endure.
7) Adamas Matrix: This is a supercomputer deep in the suite's core. Without Ferrous Mind intervention, this matrix alone can hack Noosphere and process countless pieces of information in a mere second. Connected with the WAR-CASTER as the entire data could be transferred directly to the Solar Guardian.
8) Particle Storage: With the advancement of Omniphage generation, Imperium can operate this nanomachine to dissemble any complex machinery and assemble it again when needed. This made storing weapons much more manageable; thus, the Solar Guardian can bring more if required.
9) Omnix String: It enabled the Guardian to connect with any kind of Solar guardian war engine, directly creating a bridge to the WAR-CASTER and Ebon Carapace. Thus, making the machine an actual part o the Solar Guardian's body.
-Allarus Nanosuit Specialized Standard Pattern-
1) Novex-Pattern: Designed to be used by the Demolisher. This Allarus pattern is much heavier and bulkier, designed to withstand more punishment and stored heavy weaponry.
2) Mitius-Pattern: Unlike the Novex, this pattern solely focused on stealth. Sacrificing the destructive power and defense to create a ghost in Solar Guardian ranks.
3) Quelos-Pattern: The heaviest pattern among the others. This pattern stands in between ordinary Nanosuit and War-Skeleton. Instead of Ion Shield, Quelos-Pattern is equipped with Void Shield. It also provides the Guardian with infantry siege weapons.
4) Cratus-Pattern: This one was created explicitly for the psyker as it was designed to channel the psyker's might to his fullest extent. Every piece of the instrument in this pattern is highly psychically sensitive, acting as an amplifier and protection for the psyker.
(AN: So, Solar Guardians are equivalent to Imperial Guard back in canon. If you were wondering why it was so OP. Then remember how laughably OP DAoT humans are. And this AU Imperium won a war with Aeldari Dominion, which is infinitely more powerful than in canon.)