Hi,Its Imp45

I'm actually writing this story as I've seen many of those recently (haloxmass effect crossover) and I told myself:

You love Halo,

You love Mass effect,

You love writing stories,

So, why should I not try a good crossover between two of those thing that I love^^.

So, this story is a crossover Between the Halo universe and of the Mass effect universe, this will show Master Chief and Cortana arriving into the ME Universe and trying to find a reason to go on.

Which will lead to a meeting with certain commander.

This will take place a few weeks after the beginning of ME 2 and a few days after the planet Horizon and the meeting with Kaidan.

How does a fiery commander brought back to life will act with a super soldier who has defeated death several times, you shall see it in this story (and many others on this site).

Here is for you the first chapter of A sacred oath: We did survive.

A sacred oath

Chapter 1

We did survive.

"It's been an honor serving with you, John."…

That's all…That all that John-117, Aka the Master chief remembered hearing, before a bright light made him fall into a state of unconsciousness. Right after boarding the UNSC frigate Forward into dawn, in a dashing hope the survive the destruction of the Ark.

Destruction, that he has himself orchestrated…Orchestrated with the goal to win a war, a war that has been during for nearly three decades. A war that has decimated billions of human lives. But during all this time he has never forgotten the oath that he did swear, him, alongside of 74 other children in a military camp on situated on a planet that is now glassed.

"I swore to protect Earth and her colonies."

But now at this moment he could only feel pain and doubt, many question running thought his already tortured mind…

But like many time before, a certain voice came to comfort him, and saved him from this darkness.

"Chief! Can you hear me?"

That simple question was enough to brought him back among the livings ones, and opened his eyes to observe his environment, he instantly turned on his suit's outer lights, illuminating the darkness around him.

"I thought I'd lost you too."

He couldn't help but smiled at his friend voice before now fully taking the situation he was in.

He was still in the Dawn, but the gravity wasn't there anymore, which meant that he was still in space and that the gravity system of the ship was down or at least greatly damaged.

He grabbed a rifle who was floating near him, a recognized it, it was on his back during his travel toward the ship on the warthog, he quickly checked the deadly weapon and was satisfied to see no damage on it, alongside a pretty 32 marked on the rear of the assault rifle.

John put it back on his back and advanced toward an opening that led into space.

"What happened?" he asked the AI as reached the end of the ship, with below him the infinite view of space.

"I'm not sure," She replied. "When Halo fired, it shook itself to pieces… did a number on the Ark. The portal couldn't sustain itself. We made it through just as it collapsed."

"Some of us made it."

The soldier checked out the once almighty warship, it has been cut in half in a almost clean cut from where the portal collapsed.

Seeing the damage inflicted to the frigate, both Cortana and he knew that it would need more that a few repairs to make the ship fly-ready again.

Seeing no other option,117 began to move slowly toward the cryo-pods, knowing that it was his only chance to survive during this odyssey as this ship certainly didn't had enough of food and water for him to survive more than two months.

And that's what spartan do.

Survive.

As he reached the place of the ship he was interested in, he removed the chip containing his dear friend and put it in a terminal, and so letting Cortana taking control of the ship…Or what was left of it.

"But you did it. Truth and the Covenant... The Flood... It's finished."

Those were more than powerful to him, as they confirmed that they did manage to succeed in this impossible mission that is:

To win this impossible to win war.

"It's finished," he said quietly, as if he couldn't imagine a world where he didn't have to kill every alien every day for and his species to survive.

That last thought brought back memories of some heroes of this who deserved to see its end but didn't make it.

Keyes, Jacob and Miranda, Johnson, Linda, Fred…Sam. He shook his head in a vain attempt to chase those thought away before going to a cryogenic pod, he locked his trusty MA5C into the rack beside the tube, 117 then positioned himself into the tube while listening to the blue synthetic girl.

"I'll drop a beacon, but it will be awhile before anyone finds us… years even."

The master chief glanced one more time toward her, knowing that she had the sad part of the job…She had to wait.

"I'll miss you," she added, sadness in her too human voice.

"Wake me, when you need me."

This sentence made a smile spread on the AI holographic face as she watched her friend fall in an iced sleep.

As her protector was finally really asleep, she did as she said earlier and activated the ship beacon, hopping to be found really rapidly.

As she stood on a pedestal, her holographic form sends a glare toward her hand.

Three years until the first stage of rampancy.

And with that she returned on her task to check everything on this ship that could be useful to her and her spartan.

Here it is, first chapter. Not very long but we must begin somewhere so…

I know very well that Fred-104 and Linda-058 aren't dead but at the moment of Halo 3 the are missing in action, which mean that John doesn't know that they are still alive.

Well, I do hope that you will not be disappointed with this story,only future and comments will tell…

Imp45 out.