Honestly your UNSC are a bunch of morons.
Let's review the events:
Agreeing to a mind-meld with aliens without knowing what it is...
The leader of humanity goes to a negotiation on an alien space station (probably hostile) without serious security just like a third world leader begging for peace in front of his superiors, receiving gratefully colonisation rights from people who dont own the place (I know, it's just as stupid as in canon).
Then goes on to give up all kind of secrets.
Then shows those obviously hostile alien leaders all their technological and strategic capabilities.
Then give up slipspace, MAC guns, advanced shields...
And the aliens who havent made a single progress in several thousand years implement all this knowledge in matter of weeks.
Then "placate" the citadel by organizing demonstrations in front of the press, then wargames, followed by accepting spectres on their most super-secret vessel.
Then the reapers come, twice as long, eight times as powerful (I guess).
Oh! And they find a key-ship but prefer to delay it's recovery because of a press conference!

I dont know what to think except maybe that the "balancing-the-sides-effect" killed another story.
Thank you for trying but this one is not for me.

The only problem is how the council got the plans of slip space and Mac gun from the dawn when Cortana could of blocked it or deleted it

The Turian's attempt at super-soldiers was quite pathetic. Not surprising given they banned so much genetic tech that they have barely any research into it and their genetics are far less flexible than ours.

How'd the Council get MAC blueprints if the MAC is in the front and not there?

And how exactly did the council get schematics from classified files when an AI is on board. Things like schematics for slipspace and weapons would be heavily encrypted. Further more, it seems like they did it remotely...yeeaaaahhh, don't see that happening.

When you refer to the United Species Alliance, because it is ironically dubbed "USA", I kept getting it confused with the United States of America for a bit.

Yeah fuck no spartan IV's are as good as the II's.

Master chief would spite shepard into a bloody pulp of bloody shit in a battle.

Disapointed that u make shitty spartanIV's as good as the II's. Shame on u.

Good story otherwise man.

Nice story. Enjoyed everyone mostly getting along for a change:

I like your story now I know that you have stop writing but I wanted to give you advice for who ever adopts this story. While most things don't have to be changed one thing should the speed of halo ships at the speed they are capable of they would have already found the council races. So just changing it to fit in a combined universe would be nice I mean ftl speed. Also change up the weapons and defences of the council races because when you really think about it the numbers seem a little off.

If you need someone to adopt this stories i am able to continue it for you.

Incorrect, Spartan IV's were not exactly genetically matched to the augmentations. They are not as good as Spartan III's, let alone the II's.

Infinity has 830 Point defense guns, not 50.

"The pirate flagship wasn't destroyed, it was decimated."

Huh? That sentence makes no sense. Destroyed is ten times the damage that decimated is. Something that is decimated is still 90 percent intact.

Yet another fic with a dumbass human letting an Asari mind meld with them and not shooting the mind raping bitch. Ugh - no thanks.

This is a shit ass bullshit story. The grammar sucks, the plot sucks, the idea sucks and the humans won't be buddy-buddy with the covenant separatists so fast, the quarians aren't so trusting, the council isn't supposed to be 'shocked' at everything human related, the Batarian PIRATES don't have power to blow past a UNSC colony's defences, Lord fucking Hood isn't going to turn up in possible hostile territory for negotiations, it is impossible for the UNSC to recover so quickly after a war that killed 23 billion and left only 200 million humans alive (if you don't believe me, check halowikia and halopedia), the xenophobic UNSC aren't going to show possible future enemies EARTH - their fucking homeworld and Reach and the like, the UNSC aren't going to tell them that only humans can activate super advanced Forerunner artifacts (that just puts a large target on their citizens' heads as proved by the Batarians), and many more other stupidly glaring mistakes. I couldn't bring myself to read past chapter 7 of this 'story'(if it can even be called that) because it SUCKS more than you, you illiterate waste of good oxygen and contributor of global warming. Go take a dump and eat it. Its all you're good for.