Commonwealth was assigned to participate in aiding a fleet in battle along the orbit between Earth and Mars he was also ordered to rendezvous with two other fleets before the battle begins, he was also assigned a fleet consisting of 2 Kongo-Class Battleships, 2 Russian built Murasame-Class Cruisers along with one US built one, and 4 Isokaze-Class. He was to rendezvous with them at the moon then 

Scarlet: Reaching rendezvous point.

The space shipgirls were in view, one of the Kongo's was waving at him and all of them were wearing a type of space suit that would've been tight and some revealing parts. 

Commonwealth: Are you all 4th flotilla?

Haruna: Yes we are, I am Haruna a Kongo-Class Battleship.

Hiei: And I'm Hiei! Her sister.

Commonwealth: Ah... I forgot I was more larger in rigging size.

Hiei: You're basically our unofficial dreadnought sized battleship!

Then the Murasame and Isokaze's approach

Kirov: Greetings, I am Kirov a Russian built Murasame.

Chapayev: I'm Chapayev, comrade of Kirov.

Bremerton: Hey ho~ I'm Bremerton! American built Murasame-Class.

Yukikaze: Modified Isokaze-Class Destroyer Yukikaze!

Quincy: I'm Modernized Isokaze-Class Destroyer, Quincy.

Le Téméraire: Modernized Isokaze-Class Le Téméraire!

Ayanami: Modified Isokaze-Class, I'm Ayanami.

Everyone introduced themselves to the UNSC warship.

Commonwealth: I was... expecting a larger fleet for this.

Chapayev: The Gatlantis fleet is said to have lost 77% of their forces.

Commonwealth: Well if you say so. So who is the flagship?

Haruna: You are.

Commonwealth: Okay- Wait me?

Yukikaze: Yeah you!

Bremerton: With your size, you're basically our version of a dreadnought.

Quincy: And you're more heavily armed compared to all of us.

Hiei: Adding your Nuclear Warheads of course.

Haruna: We know you're a Heavy Frigate, but with your superiority in firepower, it qualifies you as a flagship.

Commonwealth: Alright then, let's get going. How far out is the battle?

Kirov: Around 125 parsecs.

Commonwealth: With your speed we'll have to get there by FTL jumping. We'll have the advantage of a sudden surprise for the enemy as well. Alright, perform a jump to designated coordinates! Jump on my mark!

All: Hai!

Everyone then turned towards the direction of the battle and activates their warp jumps, exception of Commonwealth who uses slipspace.

Commonwealth: Jump in 3... 2...

The UNCF ships gained speed and a slipspace rupture opens in front of Commonwealth.

Commonwealth: 1! Jump!

The UNCF warships then enters warp as the UNSC warship entered slipspace. All of them dissapeared in a blink of an eye.

At the battle

The battle had raged on for some time, a lot of UNCF shipgirls were either injured or have their rigging damaged to a degree.

Bismarck: Their numbers are dwindling! Target their carrier!

NJ: Bismarck, we can't get to their carrier if they keep on shielding it!

(If you wonder how their ships look, there should be arts of it on google that I am too lazy to port here.)

Bismarck: Nimi, can you and the other destroyers flank it?

Z23: No can do, if we even try with our wave motion shields we'll still be ripped to shreds.

NJ: How many of us are left?

Bismarck: A lot are injured or their rigging are heavily damaged.

NJ: Let's hope HQ got our message.

And they did, as the 4th flotilla exited warp.

Haruna: Jersey-San! Bismarck-San!

NJ: Wait you're our aid? 

Bismarck: We can't put a dent to the ships shielding the carrier let a lone a small fleet?

Bremerton: We actually brought a bigger gun!

(From 0:12 to 0:15)

Commonwealth then exits slipspace as it created a shockwave.

Commonwealth: How goes the fight?

NJ: Wait, you're that UNSC warship aren't you?

Commonwealth: I am, I'm here to help.

NJ: I see... We appreciate it

Commonwealth: Okay, what's their line up?

Bismarck: Nimi, if you may.

The German ship then showed an image from a small projector mounted on her hat.

Z23: The escorts are mostly Lascaux-Class Assault Cruisers and Kukulkan-Class Assault destroyer.

Commonwealth: Their capital ship?

NJ: Capital ship?

Commonwealth: I mean their Flagship

Bismarck: A Nazca-Class Strike Carrier.

Looking at the enemy fleet ahead, he didn't see the carrier.

Commonwealth: I don't see the carrier.

NJ: It's being shielded, by it's own escorts acting as a shield.

Bismarck: We've manage to destroy a massive amount of them with our Wave Motion guns when we were battling it out, but we've almost drained our cores dry. It'll take a while for us to fully recharge.

Z23: There's only 15 ships remaining, 14 escorts and the carrier.

Commonwealth: Then leave it to me.

Aiming the barrel of his rifle, he took aim of at the ship shielding the carrier as he charged the rifle, a glow emitted from the bore of his rifle.

Z23: What... Is that?

(0:41-0:43)

A split second later, a thunderous boom echoed through the whole battlefield as the 600 ton slug flew at the speed of sound towards at blitzing speed towards the targeted Gatlantean ship.

*PHTANG*
*BOOM*

The slug slams into the shielding Lascaux's mid section, the sheer force from the impact caused the ship to jerk backwards and detonate into a fiery fireball.

*BOOM*

A second explosion happened but it didn't come from the destroyed escorting ship but from the carrier. The slug had over penetrated the cruiser and hit the carrier behind it, the impact left a humongous deformed hole on the carriers hull which made it's flight deck mangled.

NJ: H-He managed too...

Bismarck: Damage the carrier even when his shot hit the cruiser...

Z23: I-Incredible...

The Nazca-Class carrier was began to move backwards, trying to get out of the range of Commonwealth's MAC, it's remaining escort's formed a two layered line to shield the carrier.

*BOOM*

Another MAC shot rings out.

*PHTANG*
*KABOOM*

Two Kukulkan-Class Destroyers were destroyed.

Enemy fleet size: 12
Composition:
1 Nazca-Class Strike Carrier (Moderately Damaged)
5 Lascaux-Class Assault Cruiser
6 Kukulkan-Class Assault Destroyer

Bremerton: Another two ships...

Haruna: Is that what kinetic weapons are capable of?

Commonwealth launched a full volley of Archer Missiles towards the Gatlantean fleet, the volley was followed by a MAC round.

*PHTANG*
*BOOM x6*

The MAC round hit's first, destroying a Kukulkan-Class Destroyer and a Lascaux-Class Cruiser directly behind it. The Archer Missiles continued they're flight, while some were intercepted the eighteen managed to slip pass and destroyed four ships. Leaving only the carrier and five escorts remaining.

Enemy fleet size: 6
Composition:
1 Nazca-Class Strike Carrier (Damaged)
1 Lascaux-Class Assault Cruiser
4 Kukulkan-Class Assault Destroyer

Chapayev: Such display of power...

Ayanami: Not even one Nuclear warhead was used...

All of the UNCF Kansens were staring at the display of power from the UNSC warship. A ship capable to destroy a fleet came from a single Frigate.

Commonwealth: Time to end this turkey shoot.

Commonwealth then launches another volley of missiles, and all twenty six missiles hit their mark.

*BOOM 5x*

The remaining escort ships were destroyed, leaving only the carrier which fired it's rapid fire weapons, but due to the range they were essentially inaccurate. Commonwealth then aligns his MAC rifle towards the carrier, the charge was quick and there was a yet again a thunderous boom as the round flies towards the carrier.

*PHTANG* 

The round hit's dead center on the carrier, causing it's hull to deform from the bow from the impact.

*BOOM*

The carrier then exploded, the battlefield then goes silent.

Enemy fleet: Destroyed

Commonwealth: Looks like that's all of them. Let's head back.

Haruna: About those Nuclear Warheads... How many do you exactly carry?

Commonwealth: Fifteen.

UNCF Kansens: *unison* FIFTEEN?!

Commonwealth: Twelve of the Harpoon type and three of the Shiva type. Now let's go before more arrives.

Using his Slipspace drive, Commonwealth jumped back to Earth first. The Kansens were still taking in that a mere Frigate.

Meanwhile

Iscandar
Location: Unknown underwater Forerunner Facility

In the watery depths of Iscandar, a Forerunner facility larger than any major city on earth lies beneath the surface. Within the facility itself a hologram in the facilities control displayed the words.

"First Phase of reclamation initiated. Artifact's must be recovered."

Underneath the main sentence, a shorter one appeared.

"Bring human warship, UNSC Commonwealth."

END