Why use Spartans when you have Tactical Dolls?

-A Girls Frontline & Halo Crossover Story-

Set 10 years before the fall of Reach, and before the L Virus almost wiped humanity.

Since nobody understood anything of what I wrote for this story, I chose to rewrite the whole chapter. If you still cannot understand it, it is not my problem. Just move on to another fic if that is the case. This is for those intersted in the story, not for those that have issues with what a crossover brings to HALO.

The Mandatory Explanatory Chapter since nearly all HALO fans are totally oblivious to Girl's Frontline

Relic Technology is the trove of advanced artifacts based on Collapse Technology left all over Earth by the extinct Unknown Civilization in Relics sites. Relics research has multiple applications and has been responsible for crucial advances in human engineering, from the Assault Artillery platforms to Tactical Dolls.

Relics were developed and used by the unknown civilization that inhabited Earth before mankind. Their advanced conception of physics enabled them to use Collapse Technology.

Russia was the first nation in history to discover a relics site near the Tungus river in 2005, giving them a 40 years headstart in relics technology over the rest of the world. The Tunguska event of 2008 was the first catastrophic failure in properly handling relics, when a reactor went haywire and produced an atom-bomb like explosion

Hitoribocchi event

The Hitoribocchi event in Girls' Frontline takes place sometime in or after 2062, at least eleven years after the end of World War Three. In chapter E1-3 and E1-4, HG Theresa and AR Murata Himeko entered a relic site for their own research purposes. Theresa stated that the relic site had strong and odd energy readings and could potentially contain something similar to what the Valkryja were looking for. Himeko, later reported that this energy source did not match Honkai and that the relic was sealed with a technology even the Valkryja could not decrypt. HG Five-seveN considered they were trespassing since the relics site was under protection by Griffin and Kryuger.

Antarctic research

Early in World War Three, Hollow City shut itself from the outside world for 20 years, quietly expanding their knowledge of relics technologies. The first experimental Anti-Collapse reactor was completed in 2047 and the first applications of Collapse Technology to supercomputers in 2049.

When Hollow City opened to the crippled outside world again, it lent its advanced technology to the reconstruction efforts of the Union of Rossartrism Nations Coalition, most notably the recoil-decay barriers, 300 meters tall particle neutralizing systems used to decontaminate areas touched by Collapse Fluid clouds or nuclear warheads. The system was expensive to deploy, as it needed one system every 2 kilometer in a closed loop, but was deployed successfully in important sectors. The Three Goddesses project was launched in 2078 as a collaboration between scientists of the Coalition and the newly created Antarctic Union with the same goal as the previous White Lily and Black Rose project, producing three viable subjects. The project quickly fell apart due to political tensions and was definitely stopped in 2085.

Rossartrist research and First Antarctic War

The First Antarctic War started in 2089 after years of political tension. Military applications of Collapse Technology within the armies of the Union gave them disproportionate advantages through complete prediction of enemy strategies and high mobility. The tentative by Coalition fleets to blockade Antarctica led to massive losses of materiel, and field tactics of small infantry groups supported from the air by Trolley gunships enabled Union troops to wipe out Coalition forces several hundred times their numbers. The war would have come to a close early if the Union was actually trying to destroy the Coalition, but it was instead trying to negotiate peace while defending its interests.

Collapse Technology was necessary for the Coalition to rival with the Union, and the ongoing moratorium on relics site research was lifted as investments in theoretical physics increased. Activating the relics for reverse-engineering became their main goal, but the subject of the Three Goddesses project under their control, Noel, could not activate the relics. The Coalition then focused their efforts on finding the lost subject Jefuty. The Coalition located and successfully recovered Jefuty in the Caucasus in 2092, foiling the Union's own capture plan, operation Bakery. Two years later, the Union launched operation Kindle to recover Jefuty from the Bear's Den relics site base. When the local Coalition commander ordered the use of Assault Artillery systems within the relics site, an event similar to the one that had led to the First Beilan Island Incident occurred, and the Union and Coalition high commands had to collaborate to avoid a new apocalyptic disaster. The Union air force deployed a missile containing a molten plutonium payload to utterly destroy the Bear's Den, leaving very little chance for Noel and Jefuty to survive.

The Coalition had also lost hope of bridging the technological gap with the Union and a ceasefire was signed in 2094. Proactive intelligence work continued nevertheless and both factions were implicated in the Second Beilan Island Incident.

Collapse Fluid is the exotic matter used to disrupt the attractive and repulsive states of particles. It is not actually a fluid in the proper sense of the term, but rather a particle-wave expanding in the matter to be compressed, stopping its spread once it achieved a state of quantum stability.

Collapse Radiations emitting bottom quarks and photons are produced when Collapse Fluid permeates makes Collapse Fluid harmful to the human body, spurring the development of the Weight Bearing project to protect human operators when exploring relics sites. In the sites themselves, Collapse Fluid is generally safely contained in crystalline storage capsules, but human exploration has led to numerous incidents and expositions to Collapse Fluid. Humans exposed to a certain dosage of Collapse Fluid radiation contract Eurosky Low-Emission Infectious Disease, leading to its military use in dirty bombs.

Another dangerous aspect of Collapse Fluid is its ability to build up heat under heavy pressure, leading to an explosion once the temperature reaches a certain threshold. This property was responsible for the First Beilan Island Incident. A way to counter such an event is to evaporate the Collapse Fluid particles with molten plutonium, such as the one used in nuclear reactors.

And the Promised Rewrite made into a Timeline:

2131 Important Operations Prototype Manufacturing Company, or IOP, is a R&D and manufacturing company specializing in Tactical Dolls, directed by Havier Witkin. Sangvis Ferri Manufacturing founded under the lead of AI scientist Lycoris.

2145 the First Beilan Island Incident causes the start of World War Three. With the Collapse Fluid clouds, the war destroyed most habitable lands as well as many nations. The political face of mankind was changed to a completely new state as superpowers were brought to their knees, eventually leading to the emergence of two superpowers in the aftermath: the Union of Rossartrism Nations Coalition and the Antarctic Union. The UN deploys troops in Europe and Asia, while Northern America seems unscathed so far.

2153 Grifon & Kryuger founded by former special forces soldier Berezovich Kryuger

2161 Operation Butterfly, a Frieden strike team tries to take over the HQ of Sangvis Ferri. Top AI scientist professor Lycoris is killed in the crossfire causing the Sangvis Ferri central A.I. to rebel in relatiation for killing her "father", the A.I. ELISA sends an override signal to all SF Dolls and the first Doll Vs. Human war starts.

2162 The Interplanetary war begins in Jupiter's Moons, Europe becomes a warzone between SF Dolls and the UN Security Forces. The UN issues an Edict to unite all Humanity under it's Banner, not all countries agree.

2163 The Interplanetary war reaches Mars, G&K starts altering civilian Dolls for military purposes. With the Antarctic Union joining the UN, the United Earth Government is finally born. the War in Europe bleeds into the Caucasus, there are SF Doll sightings in Africa.

2170 The Interplanetary war ends, only the Amazons have still fighting going on. The ODST is formed and research into making augmented Humans begin. First ODST deployed in Europe, second in the Amazons.

2175 the UN Space Command is formed, Relic Sites on earth are being taken over by SF Dolls. the UN use nuclear weapons to destroy them instead of letting Sangvis Ferri get the alien technology.

2178 ONI is formed as the intelligence arm of the UNSC, the Orion Project starts.

2218 The M808 Scorpion Main Battle Tank platform first entered UNSC service, and is being deployed against Sangvis Ferri. G&K tries to subvert the programming of SF Dolls with the help of ONI researchers, there are some successes.

2268 The last SF Doll is subverted, but when the ODST teams reach the main A.I. ELISA the entire compound explodes in a Collapse Bomb. There are traces of SF Dolls having reached Mars, maybe even Jupiter. The Orion Zero augmented humans prove to be more resistant to deep space atrophy, otherwise they are just humans at peak efficiency. The Orion Project cost too much and did not deliver a super human that would match a Ringleader level SF Doll, so the project is cancelled.

2291 a group of researchers headed by Tobias Shaw and Wallace Fujikawa secretly developed the Shaw-Fujikawa Slipspace Drive, a practical means of propelling spacecraft across vast interstellar distances.

2310 Diaspora, Earth starts to send Slipstream Drive colony ships to other Star Systems.

2491 the Orion Project restarts, as there are more and more unrest in the outer Colonies.

2492 the UNSC uses nuclear weapons to quell the rebelion on the Colony of Far Isle, but since the media is censored nobody knows about this.

2494 The Outer Colonies are displeased that Earth still does not accept the Colonies rights to rule themselves, this leads to what became simply known as the Insurrection. On a far Colony, a team of insurgents find a crashed ship that seems to have been there for centuries. ELISA re-activates inside the ship and is in a very delicate situation: There are humans inside her mainframe, so instead of going all genocidal she decides to initiate communications with the intruders.

2495 After receiving classified intel about what happened on Far Isle, most of the outer Colonies rebel, meanwhile ELISA formed an uneasy alliance with a rebel group on the planet Harvest.

2509 the United Rebel Front is founded, meanwhile on Harvest: ONI managed to make a deal with ELISA, resulting in her giving the Rebels to ONI and getting ONI to repair her T-Doll manufactory. She is however under the supervision of ONI scientists that are quite interested in her. Parts of the Sangvis Ferri technology is applied for the Orion Project's Phase II research.

2514 Rampancy is no longer an issue for A.I.'s thanks to ELISA's help, Dr. Halsey enlists the A.I.'s help for her project.

2517 the Orion Project Phase II begins, as does the MJOLNIR power armor project. ELISA also upgrades her Dolls, and starts to give some of the higher end tech to ONI as she promised.

2525 Kalmya is born from the combined efforts of ELISA and Catherine Elizabeth Halsey, She will become the basis of the new line of A.I.'s. Humans run into a first contact situation with the Covenant, which results in the Covenant War as the Aliens declare Humanity's Extermination.

2526 ELISA is not too happy of being nearly glassed by the Covenant, so she decides to activate her Doll body. Being mobile seems to be safer than residing as part of a bunker. She helps the ONI personnel offworld alongside her Dolls, and decides to split from the UNSC entirely. She takes over a frigate and jumps somewhere not to be seen for a while, some ONI personnel chose to join her plan II to defeat the alient threat. But as the ONI agents sent a message to Fleetcom, nothing got past ELISA's jamming.

2530 the last bastion of the Insurgents is taken apart, while officially the war ended years ago.

2531 the story begins (In the next Chapter)

The story will begin with Halo Wars, and eventually continue with Halo Reach as well.

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As I write several stories, there will be no real timetable for their publishing.

If you are interested, please check out my other stories as well!