Disclaimer: I do not own both the Halo franchise and the Muv-luv franchise as they belong to their respective developers and publishers. This is a fanfiction, I do not earn any money from this.

Reviews Answers:

Persival - The UNSC Aide-de-Campe has the crew of 70-80 UNSC personnel. There only a few because most of the ship is automated and maintained by the Huragok and bringing an army would be counter-productive if the enemy is the Flood.

Ornstein the Dragon Slayer - Whether or not they would save her friends is uncertain but at least one of Yui's friends would survive.

Author's note: The stranded UNSC would not let itself be known or serve to any government.

Chapter 2: Revelation

"Congratulations! Chief, we just travelled to an alternate dimension!" Cortana stated cheerfully.

Everyone except John who thought deeply stared in surprise in the sheer absurdity of that statement but not one found the strength to deny it.

"Are you sure?" John asked seriously. It's not like her to joke about... well maybe it's like her but even then, the situation is too serious for jokes.

"Certain, all evidence point to that, except if this is some kind of a very convincing illusion. The data I gathered on this Earth's history is distinctly different from our own but not that much."

Dimensional travel? That's kind of far-fetched... Cortana is rarely wrong... not counting a few situations (Halo, Requiem, etc). But still...

"Isn't that a bit..."

"What? Far-fetched? Unbelievable? Impossible? Not exactly, the UNSC already theorized about parallel dimensions even before the discovery of FTL travel. Even the energy the Forerunners use originated from the infinite amount of alternative universes. The limitless energy utilized in the Halo Array and other Forerunner constructs and artifacts further proves the existence of parallel dimensions."

"…" Everyone fell silent.

Seeing their silence, Cortana continued. "And, technically, slipspace jumps are also dimensional travel, when initiating a jump, we travel to one of the 7 dimensions of slipspace parallel to our own.

"...How did this happen?" The Chief asked the crew's unheard questions. (Though he is now a Captain I will call him Chief or Master Chief at times, somehow 'Captain' doesn't suit John)

"I am not sure but the anomaly we encountered during our jump may be the cause of this situation." Cortana theorized.

"…" The CIC was once again silent.

"...Is there a way to go back?" John asked.

"Negative, the slipspace drive is fried and the lead foils that protects us from radiation were burnt. And even if we have a functional drive, without the 'coordinates' of our dimension, we would have no way to safely and surely navigate through dimensional portal, there is a large chance of us getting to another alternative dimension." Cortana continued. "And considering that we do not have a white, gigantic object trying to squash us, we cannot replicate the same circumstance that led us to this situation, our chances of actually succeeding to go back to our exact dimension is less than 0.1%."

"…"

"What now, John? I am not prepared to face this kind of situation. I need an order, Captain." At Cortana's word, the crew expectantly looked at John for an order.

The 'Captain' was speechless, he had expected a short scouting mission but considering his tendency of attracting trouble, he had been prepared for a fight against Covenant remnants or even the Flood... not this...

The 'Captain' looked at his crew... and resolved himself. He could do this, he is a captain now, he would not betray their expectations.

"Lieutenant Stevenson, inform the others about our... unique situation." John commanded.

"Yes, sir." Stevenson responded. Stevenson is the Communications officer of the UNSC Aide-De-Campe, he has black hair, brown eyes and slight wrinkles on his face.

"Lieutenant Commander, tell the operatives to scout the planet."

"Yes, Captain." The Lieutenant Commander obeyed.

The Lieutenant Commander's name is Andrew Romell, he is the Captains Aide and the socond in command of the ship. He is aged, experience and a veteran during the Covenant-UNSC war. The operatives in question are the ONI operatives stationed on the ship.

"Cortana..." John's gaze softened.

"Yes, Captain?"

"Gather some intelligence on our... counterparts."

"Affirmative, Captain." She said with a smile

"And the rest of you, prepare a course to Earth."

"Yes, sir!"

As soon as everyone got their orders, John stared at the alternative Earth while mulling over their situation.

Such a troublesome day...

~ Location Classified ~ Mountainous Area ~

The UNSC Aide-De-Campe is now docked on a mountainous area somewhere in Europe. The ship arrived on Earth with stealth systems engaged to prevent detection.

Everyone had their orders, the operatives are scouting and the rest are trying to repair the damages done to the ship. Considering, the fact that a few Engineers and UNSC mechanics died during the incident on the shield world, a full repair would take a long time.

The main concern now are resources, while they have food, fuel, power and weapons supply, they lack raw materials to make new Engineers and ship parts.

The currently is behind BETA lines, far from any human settlement.

...the BETA... Yes, the BETA, John and the crew had been debriefed by Cortana about those aliens that once again hunted humans cruelly and without mercy. Individually, they are quite stupid and instinctive but are able to perform basic tactics such as flanking. Cortana concluded that they operate in some sort of hive-mind... like the Flood.

Their war against humans were eerily similar to the Great war of UNSC, the Covenant and the Flood with a few difference. The Humans of this dimension were constantly being defeated and their forces swarmed and overwhelmed.

The UNSC are more technologically advanced but the Humans native of this dimension are more innovative in some ways, proven by their invention, the 'TSF'.

Most of the crew thinks that the 'TSF' are just advance and shield-less version of the Yggdrasil Mark IV Armor Defense System, commonly known as The Mantis.

Cortana is currently opening a bank account and ordering some Titanium alloys but the order process would be slow as the military took most of them.

John decided that they should remain anonymous and that it would be of their best interest to hide from the Government. Their sudden appearance would have sparked some suspicions and unwanted attention. A lot of nations would try to exploit them for their advanced technology, that fact was known to John and the crew especially the ONIs. And besides, John doesn't really trust any Earth Government right now and is wary of just handing advanced weapons to them considering the threat RLF sleeper agents and spies posed.

The crew discussed this topic for a long time. The ONI members suggested that they open up a front to get access to some resource and other things crucial to their survival, at the same time aiding mankind against the extraterrestrial threat.

In the end everyone including John approved of the suggestion and Cortana with the ONI members are discreetly trying to get some background.

~Timeskip: a few weeks~

A few weeks later, Cortana and the ONI members did open a company in Greenland, Reach Industry. It is still relatively small for now despite our immense amount of money, curtesy to Cortana stealing from criminals, as starting a big company right away would be suspicious.

Reach Industry develops and manufactures parts and equipment for TSF manufacturing companies of the EU. The plan was to use the company to get more insight on TSF creation, and develop our own when the time comes. Reach Industry was getting a bit known for their innovation and good quality products despite being a young company.

The board members are the officers of the crew and a few ONI. We hire outsiders to work on our factories and labs but do not allow them access to vital intel. The whole crew was sure that intelligence divisions of various countries would try to infiltrate the company for various reasons. The infiltrators would be treated normally only with tight watch as rejecting them would be too suspicious.

During Cortana's information gathering (hacking and spying), she found something interesting, the CIA, American version of ONI, is subtly sabotaging the TSF development of EU. She speculated that the purpose of this was to make EU countries more reliant on America for TSF and military support.

Following the failure on Operation Palaiologos, a large-scale operation involving the NATO and Warsaw pact forces to capture the Minsk BETA hive in Belarius, the EU and a few NATO countries initiated the ECTSF and cooperated to develop TSF to replace the F-5 based Tornado series, and the Mirage series to further prepare for the future reclamation of Europe.

Unfortunately, one by one the participants withdrew. France first withdrew when they began disagreeing with other countries as to which kind of main engine would be used on the ECTSFs. Then in the later year, Western Germany and a few countries also withdrew as the program doesn't yield much result as they expected.

With most of its original member gone including two of the most influential country in EU, only Britain and a few countries still remain undeterred. On 1987, the EU announced that the ECTSF would change to a 3rd gen high-mobility and maneuverability TSF suited for Hive infiltration like Japanese ones.

But on 1994 or last year, when they were trying to test the prototypes, the Typhoon, they ran to a problem regarding its weight, maneuverability and maintenance. The problem was it is too heavy to move fast and fly, while they could use light metals, it is too expensive and unsuitable for mass production which is the goal of the program. Next were maneuverability and maintenance, while it is rather fast when using light metals, its joints were too bulky to properly move its limbs and it requires frequent maintenance and uses certain specific machines to properly maintain the TSF.

With the constant interference of CIA and the problem they keep encountering, the Euro Fightas were incapable of yielding good results, further discouraging the contributing countries. With little results, the program was doomed to fail and American influence within the EU will drastically increase as they supply TSF and gives military support to the EU who, as a result, would become dependent to America, who doesn't want to reclaim Europe, for TSF for a long time.

However, as expected, the rapid rise of the Reach Industry has gained the attention of the UK government and the Euro Fightas. They have offered partnership and participation on the project, an offer to which John and the others agreed to.

~ Greenland ~ Reach Industry Headquarters ~

A few days has passed since they accepted the offer but time was short and the Euro Fightas' prototype TFS are still below their expectation.

Now, John and Cortana was the office next to the Engineering Wing of the building discussing over how they could contribute to the program.

"We can't send them something too advance or too incompatible with their technology."

"I know…" John replied.

"Energy Shielding, Plasma weapons, and light weapons are also out." Cortana surmised. "The best we can do is improve their weapons and take away unnecessary parts from the TSF to make it lighter." She commented while looking through the window showing the TSF in the Hangar.

It was the failed experimental prototype TSF that they borrowed from the Euro Fightas for study. The workers are currently disassembling it and put it back together after their scanning and tests.

"We could put heavy-guns and compact missile launchers that are lightweight."

The Compact missile is a new type of missile used in land and air engagement. They are as small as a grenade but pack a lot of punch on par with its predecessors. Though it is not quite accurate in long distance and only has thin plating that made them vulnerable to damage before they are even deployed.

"We can, and the maneuverability issue can be easily fixed." Cortana agreed. "But that doesn't solve the problem with maintenance. With only a certain type of machine needed to maintain it, it would be unsuitable for deployment in the battlefield."

"…" John was silent while considering his options. If they implement technology too advanced then mass production would be hard and maintenance would be a pain. If they installed Stealth or Energy shielding then they would be suspicious and he is certain that a lot of intelligence-gathering agencies including CIA who is already watching them would keep a tight watch or will try to monopolize the new technology, something John doesn't want to happen.

So he needed something innovative and revolutionary that is not far with their current technology, something that will sway the other countries to support the program.

John looked outside the window and looked at the workers who are in the middle of stripping the TSF's plating. He then looked at the plating of the TFS laid on the ground and mulled deeply.

Suddenly, he opened the holo-panel and tapped and swiped in concentration.

"Uhh, Chief?" Cortana inquired.

"Look at this, Cortana." The chief implored.

Cortana then looked at the image John drew in the monitor.

Cortana said in uncertainty. "I'm not sure what…" But then her virtual brows rose in realization of the Chief's idea. "Hmm…"

"What do you think?"

"Maybe it could work, it a bit rudimentary though but nothing I can't improve on." Cortana continued. "I'll take this to the engineers and see if we can do it."

Her avatar then blinked out the room and took a copy of the image to the UNSC engineers.

John was left in the room looking at the monitor.

There a relatively thin TSF with almost no plating was showed.

Author's note: Aaand done! I'm sorry if the second chapter took too long. I also apologize if John is too OOC, I did not really read the comics I only played the game. As you can see (read), John and the crew would remain anonymous and would not reveal their existence to any government. A handful of ONI is also stationed on the ship and now stranded with John, they would act covertly and engage in espionage.

Please inform me if there is a plot hole or if I made a mistake somewhere.

Oh! and some OCs are needed for the crew, private message me if you are interested.

Review please and recommendations are welcome no flames though.