Ok so this is my first story, so don't rip me a new asshole if it's not what you want. Disclaimer: I don't own Halo or Star Wars they belong to Bungie and Lucas Arts respectively. This story takes place about 20 years after Halo 4. I'm going to assume that the Chief and Cortana return to UNSC space and Cortana has reached metastability. Everything up to that point will mostly be canon with the addition of two time traveling teens from the 21st century. Nobal Six will also have accompanied Marcus, Tailia, Chief and Cortana instead of dying on Reach. Corporal Andrew Sampson will stay behind instead for reasons. (If you read my Rosario-Halo cross you will know.)

Ok on to the techno stuff:

Firstly, on the Star Wars ships shields. Star Wars does have some shields that can defend from projectiles (I think they are the particle shields but I'm not sure). However, they are not readily available to every ship in the verse. Only large space stations or very large capital ships would mount those types of shields. Therefore a projectile based society (Like the UNSC) would be able to utterly rape any fleet sent up against them. (Not my opinion, check out Episode 5 when they are in the asteroid field. That star destroyers shields should have protected it from the asteroid.)

Secondly, the troopers from the UNSC are going to seem like super soldiers, this is not the case. Think, with the alliance between the Sangheili and the UNSC the jarheads would have had plenty of time to train with them. Because the Sangheili are bigger than the UNSC troopers, they would eventually be able to pick them up and hurl them around to some extent. (Meaning anything smaller than a Sangheili would be hurled around even worse.) Plus they would receive better augmentations as they became available. (Still not to the extent of the Spartans but you knew that.)

At this point in time Humanity and the Sangheili would have traded tech. (Mostly the Sangheili giving the tech to Humans and them reverse engineering them and then improving on them).

Changes to Standard UNSC Service Armor: Energy Shields, Active Camo (ODSTs and SpecOps exclusive), Stronger and Lighter alloys to make up the actual armor, Ablative coating to help dissipate energy blasts, Motion tracker has been upgraded to show all targets regardless of if they are or are not moving.

No significant changes to Sangheili armor.

Changes to UNSC Space craft: Energy Shields, Switches close range ballistic weapons for directional energy projectors, though maintains the 50mm Point Defense Guns, Maintains MAC cannon as main armament. With the tech from the Sangheili the MAC has been upgraded, now is able to hurl a 6000 ton projectile from the heaviest of cannons. Basically the weapons take up less space but have more power, allowing the heaviest of ships to have many MACs. (Basically the power output of a MAC has been doubled.)

New ship classes for the UNSC:

Eclipse-Class Star Dreadnought

Hood-Class Super Battleship

Jacob-Class Battlecrusier

Miranda-Class Destroyer

Mateo-Class Frigate

Changes to UNSC Infantry Armament: All infantry rifles have been standardized to the M90 Combat rifle; three modes of fire, single, 3 round burst, full-auto, under-slung attachment for grenade launcher or flamethrower, bayonet attachment, x4 scope, (ODST variant is smaller and is silenced.) Three types of grenades can be fired from the grenade launcher; High-explosive, Armor-piercing, and Anti-personal. The rifle can fire a variety of different ammo; Armor-piercing, incendiary, Full-metal Jacket, Standard 12mm rounds, and can take a plasma battery, though this causes the weapon to degrade at an accelerated rate. Looks like a cross between the Assault Rifle, Battle Rifle, and SMG. Breaks down into several componants when not actively in use, reforms when drawn.

For heavy weapons the M87 PGC (Portable Gauss Cannon) or "Doom Whomper", pretty self explanatory. Looks like a cross between the Spartan Lazer and the Rocket Lquncher.

For long rang sniping, the M91 Rail Gun. Pretty much a smaller variant of the gauss cannon but with a long range scope and a longer barrel. The standard Sniper Rifle on Steroids.

For extreme cases, if a trooper finds himself in melee combat, he has a modified version of the energy sword. The "Energy Sword MKII" is more the size for humans, though those that distinguish themselves can receive the full sized ones from the Sangheili. No changes to Sangheili armament.

Last of the techno crap, UNSC Vehicles: (All UNSC vehicles are equipped with energy shields and ablative coatings to dissipate energy weapons fire). The space/atmosphere superiority fighter is the F-297 Blackwing. The wings are swept forward, it has a total of 8 hard points for missiles or bombs, a pair of canards behind the cockpit hold the twin 50mm Vulcan cannons.

For ground vehicles, the M28 Mammoth MBT. A pair of 140mm smoothbore cannons, a pair of coaxially mounted 20mm cannons, a rocket pod mounted on the back left portion of the turret, and duel mounted 20mm cannons for the tank commander (Tracks operate like the scorpions). Looks like a cross between the M1A1 Abrams and the Mammoth from C&C. If you've played C&C Renegade then it looks like the Mammoth from that, with previously stated modifications.

The M29 lancer AFV, 8 wheels, capacity of 20 troopers, gun ports allowing the troopers to fire out, 80mm cannon mounted on a turret on the roof of the vehicle with a coaxial 20mm cannon. Looks like the allied field artillary from Mercenaries 2.

The many variants of the Warthog have been delegated to the scouting and raiding theaters of combat along with the mongooses.

The Vulture is the main aerial combat vehicle, mounted with 20mm auto-cannons to augment its armament. With lighter Hawks in support roles. The pelican was mounted with two rear-facing 20mm cannons for defense, has been increased in size and troop complement. Increased forward armament as well, permenantly attached missle pods and a few hardpoints for addentional armament.

Wolverine and cobra haven't been changed other than the addition of a 20mm cannon to the wolverine.

No changes to the Sangheili vehicles.

(Yay, techno crap is over on to the story.)

They say one idea can change the world; well one discovery would change the galaxy. A small object floats along, from a distance nothing could be discerned about it. Just another piece of space junk, not even worth the time to recover, and salvage, however, sometimes the fates have a sense of humor.

A large ship flies next to the object, connected a tractor beam on it and started to pull it into its cargo hold. As it entered, the object rotated and 4 letters could be just made out against the pot-marked surface: U.N.S.C.

So yeah, sorry about all the techno crap, but I figured to get most of it out of the way. Now that the techno bullshit is out of the way expect more content in further chapters. Rate and Review please, this is my first story.