The portal opens up to see the UDA expeditionary fleet entering the new universe. The UDA expeditionary fleets consisted of different navy factions that are part of this expedition mission. UGSE navy ships consist of 4 Princesword-class destroyers, 3 Starfort-class light carriers, and 1 Vindicator-class battlecruiser. 

The UNSC navy has 1 phoenix-class assault ship, 4 Paris-class heavy frigates and one Punic-class supercarrier. 

The ASO navy ships have 4 Zanar-pattern light cruisers and 1 Syfon-pattern assault carrier. 

The GDI navy ships have 5 Grizzly-class Kodiak battlecruisers, 3 War Eagle-class destroyers, and 1 Kodiak MK.II capital ship. 

And finally, the Dominion navy ships have 4 Behemoth-class battlecruisers, 2 Loki-class Battlecruisers, and 1 Gorgon-class battlecruiser.

They have arrived in another dimension as they are approaching the planet that looks similar to Earth, but the continents have different shapes and sizes. Onboard the Vindicator-class battlecruiser, an admiral who is born American with Filipino descent, Lionel Mendoza, is sitting on his chair looking at the holographic screen to see a planet in front of him.

He is a 64-years old man dressed in white UGSE space navy admiral uniform. He has badges on his left chest for his achievements in his campaign. He wears a black pair of shoes. He wears a belt to make it tight for the uniform. He also has a pistol holster at the right side in case of defending himself. He keeps looking at the screen when his vice admiral, a 47-years old male Black American , Gerald Meyer, approaches him at his side for attention.

Gerald: Admiral, sir. We've arrived.

Lionel: I already see that. Vice Admiral Meyer, take a look at it. What do you see there?

A vice admiral looks at the screen showing a planet that looks similar to Earth.

Gerald: It's a planet. Similar to Earth.

Lionel: Yes. But what I see is how very clean it is there although we should be cautious when making first contact with sentient lifeforms. Computer, show me a map.

Computer AI voice: Yes, Admiral. Full scanning of the world map... Complete.

A screen shows a full map of the world and sees there are continents in different shapes and sizes.

Gerald: Interesting. These new continents really seem similar to Earth, but very different.

Lionel: Indeed. But as of right now, we aren't sure what this world is about. We have no information about it so we sent a large force of reconnaissance to send it there.

Gerald: Hold on, that many?

Lionel: Yes. We just need to send out a recon mission to see what it looks like, and then you'll set up shop in that uncharted territory. I'll notify every captain and admiral of the situation. You inform the troops that they will be briefed on the recon mission.

Gerald: Understood, sir.

...

A group of coalition dropships enter the world's atmosphere and they are going straight to the first continent to ever visit.

They landed on uncharted territory and began erecting defense structures around a larger coalition base in order to be well-defended against any hostiles who attempted to attack them. For the recon mission, the coalition reconnaissance force was made up of various factions. The UGSE dispatched 25 of its finest marines, four snipers, and ten Jager commandos. The UNSC dispatched 15 ODSTs and two Spartans. The A.S.O sent 12 best spec-ops elites led by three Elite Zealots, ten best spec-ops grunts led by four Grunt Swordsters, three Jackal snipers, and seven best ultra brutes led by one Brute Chieftain. Four GDI commandos were sent by the GDI. Finally, Dominion dispatched the top four Spectres and two Ghost-Ops.

They walk through dense woods, passing through branches, leaves, and rocks that get in their way. They didn't bring vehicles because the woods are too dense to pass through and they won't be available for the time being, so they sent the best units for this mission. After the recon mission is completed, they will clear the dense woods.

Sergeant Niko Jones, an ODST trooper, is talking with his comrade, Corporal Henry James Patel, on his side as they walk through the woods.

Niko: Hey Patel, you couldn't believe we're actually doing this?

Patel: You mean we are doing a recon mission. I mean, this world is very new to us and I figure this world is filled with inhabitants.

Niko: I wonder if we make first contact with the locals of this world.

???: If they won't try to attack us first.

They both look at a Jager Commando goes by the name, Sergeant Arlan Calmery, said to two ODSTs.

Calmery: The other expeditionary fleets of the coalition may have entered another dimension to meet and communicate with other sentient beings. Whether they are friendly or not, we must exercise caution. There's no telling what these inhabitants are capable of that we're not aware of.

???: The human is right.

They look at a Grunt Sworster joining this conversation. An Unggoy named Hazpalak said to these humans.

Hazpalak: That's why we're looking for any signs of living beings with whom we might make first contact.

???: I'm also curious why we have a bunch of weapons on our side if they're dumb enough to fight us.

A female ODST who is a tomboy. Her name is Corporal Ashley Valorea, just say to them.

Valorea: Besides, the reconnaissance was supposed to consist of at least a number of troops, but with these many...

Niko: You can tell our superiors about this. They're the ones who insist on sending so many people for such a simple reconnaissance mission. What kind of reconnaissance force is this, after all?

Calmery: It's too late for that now. We have a task ahead of us. However, if you insist on having your complaints heard, you can tell your superiors.

Niko: Whoa- hold up! I ain't gonna get court-martialed because I have doubts about their decisions.

Valorea: Does it even consider a court-martialed by having complaints and doubt to the superior?

Hazpalak: Yeah. You look kinda stupid with that expression, even behind the helmet.

Niko: You two just shut up, okay!

???: Quiet you back there! We're almost there. I can see the light at the end.

A GDI commando, MacLuther Whiteson, pointed to a light at the end of the woods. They arrived at the exit as they stepped out of the woods. What they have seen, however, is a burned-down village that was attacked an hour ago, with corpses of what appear to be elves lying on the ground. Men, women, and children are being slaughtered without regard. Worse, they come across more dead elves hanging from wooden crosses, which sickens and disgusts some of them. When one of the UGSE Marines saw a dead little girl hanging on the cross, he simply removed his helmet and puked.

Elite Zealot: Savages.

UGSE marine 1: I never knew we stumbled into a world filled with fantasy creatures and seeing elves makes me excited. But not like this...

UGSE marine 2: Yeah. Well, this is not what we just saw today.

Spec-Op grunt: When I was in the human colony world, I used to read fantasy anime novels. But I never expected to see something so disgusting and gruesome.

When he simply mentions reading fantasy anime novels, his fellow grunts look at him blankly. As a result, his fellow spec-op grunts simply take a step back from him.

Spec-Op grunt: What? I was curious to read it.

Valorea: Who could've done these people?

Brute Ultra: I found something here! And this one is not from the same corpses as the others.

A brute brought out a dead human dressed in the uniform of a medieval soldier. He dresses in different colors depending on which country he is from. They were shocked to see a dead human emerge from this world, and they know who is to blame for this slaughter.

Brute Chieftain: A human.

ODST: Here's another one!

He said, found numerous dead human soldiers lying on the ground.

Hazpalak: Now we know who is responsible for this slaughter.

Calmery: Humans dressed in medieval-era clothings? Oh, hell, I imagine this world to be full of fantasy, mythical creatures, and medieval times. We must notify our superiors of the situation here.

MacLuther: Yeah. We should definitely head back and tell them of what happen-

Then, they suddenly hear the scream coming from the north.

Grunt Swordster 1: What was that?

Niko: It sounds like it's coming from there to the north.

MacLuther: Come on. Let's investigate the source.

He went ahead first.

Valorea: Wait! We're not sure-

Elite Zealot: Follow him, everyone! We'll join him on his side.

Said a sangheili zealot. Everyone started following MacLuther up the road. They arrive to find another elven village under attack by an army of medieval human soldiers who have come to slaughter the villagers as well as their defenders.

The elves are fleeing from the human soldiers who are riding their horses and wielding their swords in the air. An elven soldier killed a human soldier and attempted to kill another before being stabbed by three spearmen. A knight seizes a fleeing female elf and stabs her in the chest. As the human soldiers and knights engaged them, more elven soldiers went to defend their people, followed by a middle-aged male knight commander named Arthus Marathyea wielding a large sword. He gave an evil, mischievous smile as he saw more elves slaughtered in the name of the Holy Kingdom of Narzia as part of their campaign to purify the heathens for their survival and to fight for religion and human supremacy.

Arthus: Ah, how pathetic pointy-ear heathens are easily to kill. It seems like our invasion of this subhuman country will be done in the next hours before your kingdom falls.

???: You shall not step forward any further, you Narzians!

Said a female elven lieutenant who goes by the name Eirwelda Aethalyn, who is wielding a curved sword pointing at these humans. Her fellow soldiers do the same to them.

Arthus: Strong words from a pathetic elf. Although you are a woman, I'm sure I can spare your life just to have my satisfaction with you.

Eirwelda: Bastard. I rather die than be spared for your satisfaction to be as your plaything.

Arthus: Silence! You and your queen shall die today! All in the name of Goddess Katharia of Faith and Purity

Meanwhile, the coalition reconnaissance force keeps standing there, watching shockingly what they have witnessed here.

Niko: What the fuck am I seeing here?

Patel: I've seen the number of medieval-era humans attacking elf villages and they are getting slaughtered.

Hazpalak then noticed two elf children fleeing from two soldiers, who were being pursued by a knight. He jumps in to save those children after noticing they are in danger and rather than continuing to watch the slaughter.

Calmery: No wait!

Elite Zealot: Follow that swordster, everyone. We'll kill those murderous vermin!

A zealot shouted as he activated his energy sword and went to follow him.

Grunt Swordster 1: Follow Hazpalak!

Everyone, especially the humans, agrees and follows Hazpalak as he takes a lead. Calmery groans before he decides to join them. MacLuther sees what they are doing and tries to stop them.

MacLuther: Stop! Damn it. We're not supposed to...

Spartan Op: We ain't leaving them to die, sir. Not on our watch.

As he followed them, a Spartan said, and MacLuther reluctantly followed soon after. But, before following the others, he informed the HQ of what they had discovered and requested backup.

The two elf children tripped on the ground while running, and when they turned around, they saw a knight ready to kill them without mercy, even for children.

Narzian Knight: Your sins of your existence will be cleansed by my hand!

He draws his sword and prepares to strike them down. The children hugged each other and closed their eyes, bracing themselves for death. Then, unexpectedly, Hazpalak used his energy sword to stab a knight who was supposed to strike them down. The two soldiers were shocked when a knight fell and went to attack him, only to be shot by a Spartan officer. Hazpalak turned around and addressed the kids.

Hazpalak: Are you alright?

Elf Boy: W-We're okay. T-Thank you.

A boy stated that he was shaking because he was afraid of being killed. The others pursue the enemy and save the elves from slaughter. Niko, Patel, Valorea, and other ODSTs opened fire on enemy soldiers with suppression SMGs. Hazpalak and his grunting swordsters charge at enemy knights, leaping at them and killing them with energy swords. Using his gravity hammer, a Jiralhanae chieftain destroys four soldiers at once. The brute ultras charge neutralized soldiers with Grenflekt spikers, manglers, and brute plasma rifles and attack them before they are shot to death. When MacLuther and his commandos saw the knights approaching, they quickly dispatched them. Calmery and other UGSE units engage the enemy and attempt to save the elves in any way they can. When Dominion Ghost-Ops noticed enemy archers climbing on the roofs of each house and firing arrows at the elves and their allies, they sniped them. The Jackal snipers operate in the same manner as the Ghost ops. One Dominion Spectre entered a house to find a soldier who had murdered an elf man and was about to rape an elf woman on top of a table while his pants were down. When a soldier saw him enter, he stopped what he was doing to her.

Narzian soldier: Hey! How dare you-

He was shot in the face and fell to the ground. An elf woman was terrified and turned to see who had saved her life from being raped by an enemy soldier.

To save the elves, the coalition units continue to fight the Narzian army, but they are easily killed in every direction. Zakaa'mora, an elite zealot, kills a Narzian knight and is thrown to the ground until he sees Arthus and his knights and soldiers defeat elven soldiers, and he captures Eirwelda, grabbing her long hair. Her face has been badly beaten, and she has been injured as a result of her fight with him.

Arthus:You have been defeated, elf. Your big talk means nothing because I've killed your best soldiers to defend this land. This land will soon be cleansed and incorporated into the Holy Kingdom of Narzia. And your people, your kind, will be enslaved for the rest of their lives.

Arthus makes evil laughs until someone calls him out.

Zakaa'mora (sangheili language): Release that girl, you filthy vermin!

Arthus and his knights and soldiers are all staring at him. A zealot glares angrily at them.

Zakaa'mora: You hands off that girl or you shall die by my blade!

Arthus: Who and what the hell are you, fiend! Nevermind, you too shall die in the name of the Holy Kingdom of Narzia. Men, kill this disgusting demihuman.

Knights and soldiers raise their swords, spears, shields, and maces and charge at him. Zakaa'mora growls angrily at these humans and pulls out dueling energy swords, activating both and preparing his fighting stance before charging at them at high speed. Zakaa'mora dodges and slices a knight who tries to slash him with his sword. Zakaa'mora slices down on every soldier with his swords, but they are unable to kill him. The knights are terrified of him killing every soldier for the sake of one person, but their pride and fearlessness drive them to attack him. A Narzian knight attempts to kill him, but Zakaa'mora cuts off his sword and kills him. Two more knights charge towards him in a war cry, but they fail to kill him when Zakaa'mora slices them in half. As he approaches his opponent, he spins an attack on him. The remaining knights continue to charge towards him, only to be stopped by bullets or plasma fired at them. Other units of the recon force assisted Zakaa'mora.

Zakaa'mora reaches the enemy leader while the knights are being shot, but he is stopped by three knights who are using shields to stop him. He leaps over them and then slices them in half. When he's finished killing them, he returns to Arthus, who is stunned by what has happened to his best knights. He clenched his teeth, irritated at being underestimated by a new foe who kept approaching. He dismisses an elf and draws his great sword, pointing at him.

Arthus: Y-You dare approach me! Arthur's, a knight commander of Narzia!

Zakaa'mora: You have no honor killing these people. Therefore, you'll die here.

Arthus: People? They're disgusting, pathetic, subhumans who need to show their place for human supremacy and there's nothing that can stop our righteous crusade!

He yelled as he dashed towards his new foe, leaping high to bring him down with his great sword. Unfortunately, he was a fool to challenge him when he struck him with his sword; an energy sword protects an elite Zealot, so the attack is weak. Arthur is taken aback, and Zakaa'mora grabs him by the leg and slams him down on the ground with full force. He screamed in agony, having never felt pain in his life, after an impact broke his backbone. Zakaa'mora snatches a sword and tosses it away. He continued to be in pain as he looked down on him.

Zakaa'mora: I said you will die here. But my superiors have other ways to ask you. Be lucky you are alive... for now.

He stomps on his head in an attempt to knock him out. He then turned around and walked towards an elf girl dressed in traditional military armor. She was initially terrified of his appearance, but she relaxed when he extended his hand and spoke to her in human language.

Zakaa'mora: Do not be afraid, these invaders won't harm your people any longer.

She hesitated, but seeing him extend his hand to her, she decided to trust this stranger and grab his hand to pull her up.

Zakaa'mora: You alright? Are you hurt?

Eirwelda: A bit, yes. But who are you and what are you?

Zakaa'mora: I am Zakaa'mora, I am what you know as sangheili. I am a zealot warrior in Allied Species of Orion.

Eirwelda: A warrior?

Then she turned around to see an ODST, Calmery, came right beside him.

Calmery: Hey zealot, we're finishing mop up-

Eirwelda: Human!

She drew her sword and pointed it at him. Calmery raised his hands as a sword was pointed at him.

Calmery: Whoa, whoa, whoa, easy lady!

Zakaa'mora blocked her sword with his arm to protect his human ally.

Zakaa'mora: Have no fret, elf girl. He's my side. A friend. He and his people are not the same human you fought against.

She looks around and sees humans in various uniforms assisting the remaining survivors and attending to their medical treatment with the assistance of others. She decides to trust his sword and lay down her sword after seeing that they are not the same humans she fought against.

Eirwelda: My apologies.

Calmery: It's fine, lady. I know why you act that way. Besides, we just found another village only to see dead bodies of elves and humans dressed in medieval outfits.

Eirwelda: They are from the Holy Kingdom of Narzia.

Calmery: Narzia? So that's what they called themselves, huh?

Zakaa'mora: I heard this enemy leader hailing from his nation. That must be them.

Eirwelda: They're really hostile towards everyone who are not humans and heretics who are defied of their religion.

Calmery: So they're a theocratic monarchy. Damn, I hate those guys. Anyway, who are you? You seem to be military, for I see one.

Eirwelda: Oh, how rude of me not to introduce myself. My name is Eirwelda Aethalyn, and I am an Elven Kingdom lieutenant. My kingdom has been declared at war by these Narzian humans who want nothing more than to enslave us to work for humans and have no freedom for us.

Zakaa'mora: They almost sound like the Covenant...

He angrily muttered.

Zakaa'mora: Tell me, what's the situation of your kingdom now?

Eirwelda: According to what I've heard, my people are doing everything they can to keep the enemy from entering the capital, though our defense is weak and we won't be able to do so for much longer. They were led by Lord Dartheus and his son Tartherus. My queen is doing everything she can to prevent them from conquering us.

Calmery: Do you have allies?

Eirwelda: We have the Beast Kingdom on our side, but they were stopped by the Aldorna Empire, which is an ally of the Holy Kingdom of Narzia. They, too, have been invaded and will be unable to send aid anytime soon.

Calmery: Well damn, but it's a good thing we come all the way here to save you. After all, we just already built our bases and we are preparing our forces there.

Eirwelda: Wait, you have armies too? Where do you come from?

Calmery: Right at the corner between the border of the holy kingdom and your kingdom. Also, we're more like the largest military coalition made up from our allies working together.

Eirwelda: Then what is your purpose here?

Calmery: Well, since seeing what's happening here and who is responsible for it, we're just gonna inform our superiors about this, and we're gonna help you guys.

Eirwelda: R-Really! Please, then, save our kingdom. Please help me to save my people. I assure you that you will be rewarded for saving my people from these dire circumstances.

She said, giving them pleading to save her people from being conquered by the Holy Kingdom of Narzia and its ally, Aldorna Empire, which they declared war on the Beast kingdom.

Zakaa'mora: Lieutenant, we don't need a reward. But we'll gladly assist you in stopping these cursed enemies who want nothing more than to enslave your kind for their selfish dreams of blasphemous religion and supremacy dominance.

Eirwelda was happy to hear then she looked at Calmery to ask him whether his people should join this war too.

Eirwelda: How about you? Are you sure you're going to save us, even against your own kind?

He shakes his head with his smile in response to her.

Calmery: Lady, just because their humans like us doesn't mean we're always helping them. We have differences, and differences make opposition that end up fighting each other. So yeah, we're going to stop them and save you guys.

She was relieved to meet new allies who would bring hope to her people after his response.

Eirwelda: T-Thank you! It's a miracle to have new allies like you to help us to end this war for good.

She expressed her gratitude for having new allies on her side. Following that, the recon forces returned to inform their superiors of the situation and make contact with elves in need of assistance from two countries that were invading both demihumans. After hearing their reports, Admiral Gerald and the others have initiated Freebird Protocol for war on both the holy kingdom and the empire in order to assist these elves and beastfolk, which they believe is a good move in order to build friendly relationships with them and eventually become their allies. So they've already made a decision: they're going to join the war and change things for the better.