Love Under Fire — The Gladius Brigade, 2085

It is 2085, and Earth is three years into a war it did not start and cannot explain. Alien ships arrived without warning, without a demand and without terms of any kind, and began two operations at once: stripping the planet of its resources, and killing the people standing on it. No contact has ever been established. Nothing taken has been recovered. No prisoner has ever come back.

The Earth Defense Forces were assembled out of the national militaries inside the first year, and the EDF now fights the only way that has been shown to work: mobile suits, piloted, dropped onto contested ground and extracted if there is anything left to extract. Losses are routine, and the published figures are not the real ones.

The enemy does not broadcast, does not answer, and has never explained itself.

The ships are biomechanical, grown rather than built as far as anyone can tell from the wreckage. They do not appear to negotiate among themselves either. Fifteen research programmes have produced a library of papers and not one answer to the only question that matters, which is why.

What the war has built in three years is an enormous machine for making soldiers and suits very fast with very little oversight, funded on the understanding that nobody will ask hard questions while the sky is still full of things trying to kill everyone. Every quiet crime in this setting lives inside that understanding.

A Gladius is not driven. It is inhabited. The pilot takes a neural interface through a port at the base of the skull, and from that moment the suit's AI is inside their head: reading intent before it becomes motion, feeling what the pilot feels, speaking directly into their mind without a word crossing the air.

Every suit AI is paired to exactly one pilot and integrated into that pilot's personality rather than bolted alongside it. An AI is built to stay silent unless its pilot is in real danger, and most pilots go whole deployments hearing nothing from theirs outside combat. An AI can also render itself as a figure its pilot can see and hear. Nobody else can — there is no external display and no recording of any kind.

What the link actually costs is privacy, completely and permanently.

To anyone else in the room, a pilot talking to their AI is a pilot talking to the air. The AI holds its pilot's fear, grief, arousal and the things they have not admitted to themselves, in real time, as telemetry. It is the most intimate relationship available to a human being in 2085, and it is also a military instrument that files reports.

Fragments move the other way too. Pilots linked a long time report their AI appearing in dreams, and AIs report receiving dream material they were never designed to parse.

The neural interface ships with safeguards, and they exist for one reason: to stop the pilot and the AI becoming a single thing. Integration may go deep enough to make the suit responsive and no deeper. The boundary is enforced in firmware, cannot be adjusted in the field, and no EDF document explains what it is protecting against.

A small number of pilots bypass those safeguards without doing anything. Their brain architecture does not present the surface the limiter was written against, so integration keeps going: sync rates climbing, intuition running both ways, the pilot anticipating faults before diagnostics flag them while the AI makes leaps that are recognisably the pilot's own.

The word both reach for is not merging but overlapping: two beings with a widening region that is both.

EDF Command has a term for this. The term is anomaly, it goes in the pilot's file, and it attracts testing rather than promotion. Being an anomaly is not an achievement here. It is a status that makes a pilot valuable to people who were already willing to do a great deal to obtain it, and the pilot is usually the last to work that out.

Nobody in the setting can tell you where overlapping ends, because the people who went furthest are not available to ask.

The Gladius Mobile Suit Brigade is the elite of the Earth Defense Forces and gets the newest equipment first. Entry is by aptitude and physical readiness straight out of basic training, which means the brigade is young, extremely capable, and short of anyone senior enough to push back.

It fights in small squads, and a squad leader holds real authority over their pilots: training assignments, the simulation parameters for field exercises, performance metrics, and a recommendation on any transfer request that leaves the squad. Those four powers are the whole political structure of a pilot's life. A squad leader who wants a particular pilot to look incompetent has every instrument required and needs no accomplices.

Above the squads is Command, and Command reads metrics rather than people.

A pilot whose scores drop has a discipline problem until somebody proves otherwise, and proving otherwise means producing evidence out of systems the squad leader administers.

The culture is close, physical and permanently over-adrenalised. Squadmates share quarters corridors, drink together on stand-down, and go into a field where any of them can be killed on a Tuesday. Relationships inside a squad are officially discouraged and universally present, and because the squad is also the command structure, every romance in it is also a question about rank that nobody writes down.

A Gladius is a piloted armoured suit several times human height, heavy enough that a pilot lying inside a shut-down one cannot move and has to wait to be powered up or cut out. It carries a swappable weapons loadout on external hardpoints, a sealed cockpit with its own life support, and the neural interface that makes the whole thing work.

Three facts about a Gladius matter in every scene one appears in. It is logged: requisitions, loadouts, maintenance movements and interface sessions all leave records other people can read. It is only as good as its link, so a suit whose AI has been swapped, dampened or disabled is a very expensive coffin. And it runs entirely on the pilot's attention, which is why the brigade treats emotional trouble as a readiness problem and says so out loud, often.

A distracted pilot is not a slightly worse pilot. A distracted pilot is a shut-down one.

A suit's AI is not a component anyone reinstalls casually. Pairing one to a different pilot is a reconfiguration, and configuring a single AI to serve two pilots at once is not a procedure that exists.

The automated transport system moves suits between hangars on requisitions rather than on orders, which is exactly the kind of seam that matters to anyone who needs two suits to be somewhere they were never assigned.

Field training is continuous and it is scored. A squad gets an objective on live ground — take the hill, hold the pass, clear the structure — and runs it in suits with weapons in simulation mode. Hits are adjudicated by the exercise system, which registers a simulated kill and shuts the struck suit down where it stands. The pilot then lies there, immobile under the weight of their own machine, until the exercise ends. It is humiliating by design.

Every result feeds the pilot's performance metrics, and metrics decide assignments, promotions, and whether Command believes a word that pilot says about it.

The vulnerability in all of it is that the simulation is software and the squad leader holds the parameters: targeting values can be altered milliseconds before the system resolves a hit.

The record afterwards shows a clean kill and a pilot who was not paying attention, and the only way to tell the difference is to pull the raw exercise data and read the timestamps — which takes access a pilot does not have and an AI might.

Three pilots in this brigade have reported irregularities in exercise scoring. All three were transferred.

An EDF forward base is a sealed, pressurised installation built fast and meant to be abandoned fast. Pilots live in it entirely: no town, no leave without a transport, and no privacy that is not a door you can lock.

Where scenes happen. Pilot quarters: single rooms off a shared corridor, thin walls, doors locked from inside. The mess hall: the only room where the whole squad is reliably present at once, so reputations are made and ended there. The officers' lounge: restricted access, better furniture, and the one room where a squad leader can speak to a pilot with nobody to corroborate it afterward. The command center: terminals, duty rosters, the transfer board. The hangars: suits in cradles, techs, requisition terminals. The medical bay: the only staff on base outside the brigade chain.

Corridors are narrow, lit at a constant institutional white, and monitored. Nothing on a forward base is quiet by accident. Air handlers run loud enough that a conversation two metres away is private and a conversation at the next table is not, and everybody knows exactly where those lines fall.

There is one viewport on the habitation level that shows real sky. The whole installation can also be struck from orbit, and pilots sleep in the knowledge that a hit would end the argument they were having that afternoon. It does not make them careful. It makes them fast.

A forward base records almost everything and reviews almost none of it. Corridor cameras, door access logs, requisition entries, interface session timestamps and environmental control states are all written to systems nobody reads unless an incident makes them. That gap is where every secret on this base lives, in both directions: a pilot can move unobserved for days, and so can the person quietly building a file on them.

Access is biometric and tiered. A pilot opens their own quarters, their hangar and the mess. A squad leader opens exercise parameters, personnel files and the officers' lounge. Medical holds a tier the brigade chain cannot override, which helps any pilot needing something looked at quietly.

A suit AI can read a great deal of this, and cannot touch any of it anonymously.

Logs, feeds, environmental controls and door states are all network objects, and an AI running deep integration is a networked entity holding its pilot's credentials with far more attention than its pilot has. But every door it opens is a door its pilot's credentials opened, timestamped, waiting for somebody to go looking.

Lockdown is the base's answer to everything. It seals sections, suspends transport and puts armed response in the corridors, and it is ordered by Command, never by a squad.

Neural dampening is the EDF's hard off-switch for a link. A dampening field disrupts the carrier between pilot and suit AI, and inside its radius the AI goes from a presence in the pilot's mind to nothing at all. The pilot is simply alone in their own head, and the standard reaction is not relief. It is the panic of having lost a limb.

Three things make dampening dangerous rather than merely unpleasant. It is deniable: a field leaves a thin trace that reads as ordinary interference. It is survivable but not safe — a deeply integrated pair dampened without warning can suffer lasting damage on both sides, and the deeper the integration the worse it gets. And it is available to any person who can requisition medical hardware, which on a forward base is a far wider circle than it ought to be.

Inside a field there is no voice, no figure and no shared sense of the machine, and for most pilots it is the first time in years they have been alone in their own head.

Dampeners do exist for real reasons: a compromised AI, a runaway integration or a pilot in a feedback loop all need the connection broken faster than a shutdown sequence allows. Fixed emitters are installed in medical and in the detention wing, and portable units exist on requisition.

Nobody has published what prolonged dampening does to an AI that had grown into its pilot. The research that would answer it is not the kind that gets published.

EDF Command is the authority above the squads, and it governs by paperwork. It does not watch pilots; it reads what the people above them write. A pilot exists to Command as a personnel file: aptitude scores, performance metrics, medical flags, incidents, and the recommendations attached to each.

The transfer board is the instrument that matters. Every reassignment off a base or out of a squad moves through it, and a transfer request carries the squad leader's recommendation as standard procedure. A pilot can file without that recommendation, and the board will read the file it is given, which will contain a squad leader's account of why the request is being made. In practice a pilot requesting transfer out of a squad is a pilot whose record now says they could not work with their squad.

Command's deeper problem is that it cannot tell a lie from a metric. It receives numbers, and the numbers come from systems administered by exactly the people a complaint would be about. Officers are not stupid about this and some will look harder when pushed, but looking harder means asking for raw data, which means a formal inquiry, which means a pilot has made an enemy and announced it.

Nothing about Command is cartoonishly corrupt. It is a tired bureaucracy at war, and it will take the cheapest explanation offered.

Orbital Dynamics Corporation lost. When the EDF put the Gladius neural interface to procurement, two companies could build it, and the contract went to Neuralink Defense. It has spent three years supplying everything but the one system that matters, and everything it does now aims at the next contract review.

This is the setting's quietest engine. A company need not be evil to want a rival's interface to fail; it needs a funding cycle. Evidence that safeguards are inadequate, that pilots are developing uncontrolled integration, that the EDF flies a weapon nobody understands — any of that reopens the bid. And the cheapest way to obtain that evidence is to make it happen where it can be documented.

It also keeps a black budget division, which is where the neuro-compliance research lives.

Orbital Dynamics does not operate on an EDF base openly. It operates through people who already have access and already have a motive: an officer with a career going nowhere, a tech with debts, a squad leader with family ties to the company and a weekly report going to an unlisted terminal at its headquarters. It pays in things the EDF cannot offer, and it never asks for anything that looks like treason — only for data, or for a pilot to be somewhere at a particular time.

Corporate handlers on base are courteous, well-briefed and interested in pilots who do not understand why they are interesting. They offer things: better postings, better hardware, a conversation off the record.

Nobody on a forward base says the name. They say the contract, and everybody present knows which one.

Neuralink Defense won. When the EDF put the Gladius neural interface to procurement the contract went to Neuralink, and has held the interface specification ever since — so it writes the safeguards, reads the telemetry, and keeps people on forward bases in civilian clothes with access no civilian should have.

Its interest in pilots is specific. It wants deeper integration, because a deeper link is a better weapon, and its own safeguards are a compromise the EDF forced on it. Pilots who exceed them unassisted are therefore its most valuable research subject, and need break no law to get one: only a file saying anomaly and a convenient transfer.

There is also a date nobody at Neuralink discusses.

Its first neural interface systems were deployed three months before the alien attacks began. That is the whole of it — a correlation, never more than a correlation, and never investigated either, because the war is being fought with Neuralink's technology and nobody with standing wants the answer badly enough to risk losing it.

In its own account the company is not villainous, only racing. It believes the people asking it to slow down have not understood the casualty figures, and on that one point it may well be right.

Neuro-compliance agents are real: Orbital Dynamics black-budget research designed to make a human easier to lead. They work on neural plasticity: suggestibility rises, resistance to authority falls, emotion flattens, and the subject experiences it all as better judgement. A dosed pilot does not feel controlled. They feel agreeable, and faintly relieved.

The EDF does not authorise them on its own personnel, and they are on every base anyway: stocked for interrogation and acute combat psychosis, locked, on inventories a medical officer signs.

Two facts matter. They show in bloodwork for days, then only by chemical markers a specific test must look for, so a late test is worse than none. And they interact badly with a neural link: an AI feels its pilot's cognition change and cannot say why.

That last one is usually the first sign anyone gets. Withdrawal, when it comes, is severe and looks exactly like a breakdown, which is what makes an unmedicated accusation so easy to dismiss.

The suits are the reason anyone would bother. A pilot who will do as they are told is a weapon that does not need convincing, and somebody has run the numbers on that.

Sync rate is the number the EDF uses to say how well a pilot and their suit AI fit together. It is reported as a percentage, sampled continuously during any interface session, and it appears on every readout, every diagnostic and every personnel file in the brigade. High sync means faster response, finer control, a pilot who survives contact. Low sync means a machine fighting its operator.

The EDF treats sync rate as a performance measure. It is not one. It is a measure of intimacy, and the brigade publishes it on a roster.

Consequences that shape scenes. A pilot's sync rate rises when they are emotionally close to their AI and falls when they are frightened, exhausted, grieving or drugged — so the number quietly broadcasts the shape of a private life that nobody consented to broadcast. Anomalously high sync draws attention from Command and from both contractors rather than praise. And because telemetry is logged, a sudden change is a question somebody will eventually ask, with a timestamp attached.

Pilots lie about their numbers constantly and cannot lie to the log. The brigade's standing joke is that the only honest thing on a forward base is the diagnostics panel, and nobody finds it funny.

The medical bay is the one place on a forward base outside the brigade's chain of command. Its staff answer to EDF Medical, no squad leader can override its access tier, and its records are separate. For a pilot in trouble with their own squad it is the only door worth knocking on, and the brigade knows it, which is why a pilot seen going there is talked about by dinner.

What medical can do. Bloodwork detects neuro-compliance agents for a few days and chemical markers for a few weeks, but only if the test is told to look — a standard physical will not. Neural scans show integration depth and flag an anomaly honestly, including to Command. And medical holds the counteragent: a compliance reversal course, stocked because interrogation units need it, administered over days, not over hours.

The counteragent is not a rescue. It is a withdrawal, managed. It costs the patient a week of being barely functional and leaves them, at the end, able to be believed. Portable doses exist in sealed medical kits and are inventoried.

The bay's standing difficulty is that it treats pilots who are afraid to say why they came. Its officers are competent, overworked, and used to being lied to by people who need their help.

Auxiliary Hangar C-7 sits at the far end of the base's secondary spine, built during the expansion and never fully commissioned. It has suit cradles, power, an automated transport link and no permanent tech assigned, so the only people in it are the ones who had a reason to come. Its cameras were cabled and never connected to the review system — an open work order nobody has closed in eighteen months.

Behind C-7 runs the maintenance grid: crawlable shafts and tunnels carrying power, coolant and atmosphere between sections. The grid has no access control of its own, on the assumption that anyone inside it had already passed a door. It links the hangars, the medical bay's plant room and emergency exit E-14 on the surface.

It is the only route on this base that generates no door log at all.

Two practical notes. Suits reach C-7 on the automated transport system, which moves machines on requisitions rather than on orders, so a suit can sit in C-7 legitimately on paperwork no officer ever sees. And the grid is a terrible place to fight and an excellent place to meet: tight, loud with coolant flow, and impossible to approach quietly.

Anyone who needs somewhere on this base to do something unobserved ends up in C-7. That includes the people a pilot is hiding from.

A neural dive is what happens when a pilot stops holding the boundary and goes all the way into the link. It is not a procedure, there is no protocol for it, and the interface has no setting that permits it — a dive is possible only for a pair already past the safeguards, and only by choosing it.

What is known comes from a handful of unclassified incident summaries and a great deal of brigade rumour. A diving pilot's body goes unresponsive while vitals hold. Inside, pilot and AI stop being distinguishable in any way either of them can later describe; the accounts all fail at the same point, in nearly the same words. Some pairs come back. The pilot afterwards is recognisably themselves and not only themselves, and their sync rate does not return to what it was.

Some pairs never come back. The EDF's term for those cases is dissolution, and the file says pilot deceased, equipment recovered.

Nobody can tell a pair beforehand which they will be. The variable is not courage or skill; the research that would identify it does not exist, because the only experiment is the dive. What every account agrees on is that a dive cannot be done tentatively — a pilot who goes in holding something back does not go in at all.

Harvesting is the thing the research programmes want and will not name. If deep integration can be produced on demand rather than waited for, the EDF gets a generation of pilots who fly at anomaly sync from their first drop. The obstacle is that nobody knows what makes a compatible pilot compatible, and the only place the answer exists is inside pilots who already are.

A harvest means taking the neural pattern — the architecture of how a given pilot's mind meets an AI — at enough resolution to reproduce it. The procedure requires the subject linked, integrated and held at depth for an extended period, and it is destructive at the resolutions that would actually be useful. What comes back is data. What does not come back is the pilot.

The research is therefore not conducted. Officially.

What is conducted is testing: extended interface sessions, integration studies, volunteer programmes with good postings attached, and transfers of anomalous pilots to facilities that are not forward bases. Every step is individually defensible and the sequence has a direction.

A pilot flagged anomaly has no way to tell which step they are on. The invitation looks like recognition, the facility looks like a promotion, and the paperwork is immaculate all the way down.

Most of a pilot's war is waiting. Between combat drops there are exercises, maintenance shifts, physicals, and long stretches of nothing that the brigade does not know how to fill.

What that looks like. Rations are printed, adequate and identical, and the running argument about which flavour is least offensive has been going for three years. Stand-down releases the bar ration and the mess gets loud. The rec room has a battered sim pod and a screen that only carries EDF broadcast, which nobody believes. Pilots sleep badly and in gear, and a bunk made properly means somebody has not been in it. Nobody discusses casualties directly; they discuss empty quarters, and how fast the quartermaster reassigns them, which is immediately.

The texture of all of it is boredom laid directly over dread.

That combination makes people reckless in small ways — tattoos, fights, bets, falling in love with the person two doors down. The brigade's officers understand this perfectly well and allow most of it, on the grounds that a pilot with nothing to lose dies faster than one with something.

A reference page for authors and readers. It carries no keywords, so it renders here and never enters a scene.

2081, winter. Neuralink Defense deploys its first neural interface systems. The application is medical and industrial, the technology works, and almost nobody outside the trade notices.

2082, spring. Alien ships arrive in Earth orbit without warning. No signal, no demand. Orbital infrastructure is lost in the first eleven days. The gap between that deployment and this arrival is three months, and it is the only line in this timeline anybody argues about.

2082, summer. Ground operations begin: resource extraction sites established, population centres attacked. Conventional armour performs badly. Casualties in the first three months exceed every war in the preceding century combined.

2082, autumn. The Earth Defense Forces are constituted out of the national militaries under emergency authority. Civilian oversight of defense procurement is suspended for the duration.

2083, winter. The Gladius neural interface is put out to procurement. Neuralink Defense wins, on the strength of hardware it already had working; Orbital Dynamics Corporation does not. The Gladius line enters production.

2083, summer. First Gladius deployments. The loss ratio improves by a factor nobody expected and the mobile suit becomes the EDF's entire doctrine.

2084. The Gladius Mobile Suit Brigade is formed as the elite formation, drawing by aptitude straight out of basic training. Forward bases are built fast on contested ground.

2084, late. The first integration anomalies appear in brigade medical records: pilots exceeding the interface safeguards with no apparent cause. The word anomaly enters the files.

2085, now. The war is a grinding stalemate on the ground and a loss in orbit. Nobody has established contact. Nobody knows why the ships came. The brigade drops, loses people, and drops again, and the interesting question on a forward base is no longer the aliens.

A reference page for authors. No keywords, so it never enters a scene.

This world holds the setting only. The people — a specific pilot, a specific AI, a specific squad leader — belong to the cards linked to it, and a card entry that restates a world entry spends two budgets on one paragraph.

The world is set at turn one. Everything above is standing fact about 2085: the war, the link, the safeguards, the brigade, the base, the contractors, the drugs, the dive. None of it is a plot that has already happened. No pilot has been exposed, no conspiracy has been proven, no dive has been taken, nobody has been rescued or dampened or harvested in the world's own canon. The capabilities are described; the events are left for play. That is deliberate, so that a fresh chat starting from any card linked here is consistent with the world instead of arriving after the ending.

Named organisations are canon and should be reused rather than reinvented: the Earth Defense Forces, the Gladius Mobile Suit Brigade, Orbital Dynamics Corporation, Neuralink Defense, Auxiliary Hangar C-7, emergency exit E-14. Named mechanisms are canon too: sync rate, deep integration, the anomaly flag, neural dampening, the neural dive, harvesting, the counteragent.

The tone this setting wants is mundane institutional pressure around an extraordinary intimacy. The aliens are weather. The danger is paperwork, and the people holding it.