So, here's my intro to this work-in-progress in the little-used Halo/Fallout Crossover section. I know the back-story on the Fallout Universe is a little long, but think about it: wastelanders don't stand a snowball's chance in hell against the Covenant without some boosting and organization, so I did my best to remain true to the Fallout idea and give them a realistic, not OP, boost in the way of manufacturing (modeled after the Pitt, minus slaves), reverse-engineered alien weapons (Mothership Zeta probably has engineering records and diagrams for them to study, so that's completely possible), energy shields (based on a different concept than the Covenant), more powerful weapons (thanks to manufacturing), and a population that can sustain an army large enough to give the Covenant a good fight. If you don't feel like reading it, that's fine, but it's the basis for the rest of my fanfic. And just to say this once to cover my rear, I don't own anything in this story except OM. Bethesda and Bungie, keep Fallout and Halo. I'm not saying this again.

Reach has fallen. The Covenant has amassed the largest fleet in all of recorded history for the final assault on Earth to destroy the human race. Humanity desperately scrambles to amass defenses both in space and on the ground against the seemingly unstoppable might of the Covenant, while Arbiter Thel Vadumee makes his final preparations. Little do they know that they are not the only forces at work in this universe… or the other one...

Halo Weapons in Fallout stats (tell me if you disagree, and I'm going off of Halo: Reach via Halo Nation and Fallout: New Vegas via Nukapedia):

Human

M6G Magnum

-DPA: 42

-DPS: 163.1

-WGT: 6.5

-Shots/Rel: 8

-Atk/Sec: 3.88

-ACC: 0.15

-Ammo Bonus: -12 DT (semi-armor-piercing), +2 DAM vs. non-robots (explosive)

MA37 Assault Rifle

-DPA: 40 (comparable to Automatic Rifle (Dead Money) of Fallout: New Vegas)

-DPS: 400

-WGT: 15

-Shots/Rel: 32

-Atk/Sec: 10 (pulled this straight from the wiki, don't be hatin')

-ACC: 0.09

-Ammo Bonus: 1.3xDAM, -15 DT (I agree that it seems OP in Fallout, but remember, Fallout got some upgrades, too)

M392 DMR Designated Marksman Rifle

-DPA: 55 (comparable to This Machine of Fallout: New Vegas)

-DPS: 137.5

-WGT: 10

-Shots/Rel: 15

-Atk/Sec: 2.5 (I'm choosing to make this gun a semi-auto version only so that I can accurately do damage calculation against anything from Fallout that might happen)

-ACC: 0.01

-Ammo Bonus: none

M45 TS Shotgun

-DPA: 10x15

-DPS: 135

-WGT: 7

-Shots/Rel: 6

-Atk/Sec: 0.9

-ACC: 0.9

-Ammo Bonus: none

SRS99 Sniper Rifle

-DPA: 140 (there is no bullet in Fallout nearly the size of a 14.5x114mm; .50 cal is actually significantly smaller [approximate conversion to cal: .57])

-DPS: 175

-WGT: 15

-Shots/Rel: 4

-Atk/Sec: 1.25

-ACC: 0.00001 (If it's not, it better be with all the advanced technology the UNSC has at its disposal)

-Ammo Bonus: HE: +2 DAM vs non-robots; AP: -15 DT

To be continued... [If you want to weigh in, make sure you get the caliber as close as possible to something in Fallout and estimate the weight if Halo Nation doesn't have it]

Nobel Six has been recalled from Nobel Team. He and newly-revived Master Chief Petty Officer John-117, along with a small team of Spartans known as Maverick Team, join the defense of Earth as Nobel Team assists with the evacuation. Aboard the UNSC Feathersoft, a stealth ship specifically designed to be all but invisible to Covenant forces, they spy on the Covenant armada preparing to launch the last leg of their genocidal campaign against the human race. But... which human race will they really target?

After the successful initiation of Project Purity and elimination of the Enclave, Jacob King disappeared for a time. The Savior of the Wasteland decided that he needed to get away from the Capitol Wasteland, and so he set off for New Vegas. There, he arrived just in time to help the Courier in his successful coup against not only Mr. House and the Families Three, but the Legion and the NCR.

During this time, he became good friends with Clint Thompson, now known as the all-powerful ruler of the Mojave (formerly the Courier), and was introduced to his friends at the Think Tank and the Western Brotherhood of Steel. Being a natural scientist, he made full use of the technological advances at his disposal and partnered with the Gun Runners to make the most successful weapon factory in history, eventually taking over what used to be the Tops Casino for his manufacturing. After a while, his heart turned toward home, and he returned to the Capitol Wasteland a very, very rich man.

The Capitol Wasteland, on the other hand, was not so well off. With the Super Mutants gone, deathclaws had taken over the Wasteland, overrunning everything but Rivet City. Almost everyone had taken refuge there, unable to fight the massive hoards of deathclaws that killed everything in sight. Not even the Brotherhood were immune. Jacob took it upon himself to transport hundreds of his personally-designed advanced weapons and armor to the survivors, which eventually turned the tide.

After several years of fighting, the Capitol Wasteland was almost completely free of the scourge. Several new weapons had been designed in the meantime, specifically engineered to kill deathclaws. New types of power armor or modified, older suits, impervious to deathclaw strikes and possessing none of the agility problems of the old power armor, were considered standard-issue by the guards of the new settlements. Megaton, Underworld, and Paradise Falls were re-settled and re-built to withstand attacks.

After the Capitol Wasteland united under the flag of the Eastern Republic, peace like no one had ever seen in their lifetime reigned over the otherwise barren wastes. Thanks to the common enemy presented by the deathclaws, most Raiders gave up their ways in exchange for security in Rivet City. Manufacturing created new markets for scrap metal, and Vertibirds soon began regular cargo and passenger service between the Republic and the Mojave Confederacy.

During this time, the Mojave had been busy as well. After earthquakes drove them from Eden, the Dead Horses and Sorrows had made their way to New Vegas where they sought Clint's help in finding a new home. Clint was more than willing to give it to them, and after a little negotiating he managed to convince the Great Khans to allow them to live in the nearby canyons in exchange for some of Jacob's weapons. Although relations were a little rough at first, the Khans eventually realized that these apparently "primitive" people had something to offer in the way of survival skills and tracking abilities. Not to mention their women were really easy on the eyes.

The hostile Super Mutants of Black Mountain were eventually killed off, and the friendly Super Mutants of Jacobstown became very successful in trading and offering their services as body guards and caravan guards. All seemed well until the Legion invaded again. This time they were largely successful, and might have completely succeeded in wiping out every living human in the Mojave Wasteland had it not been for the timely intervention of a lone wolf named Jackal and her yao guai named Bear. As it was, the legion leveled all of New Vegas using a left-over nuclear bomb. Fortunately, most of the citizens of New Vegas were evacuated by Vertibirds to the Capitol Wasteland, where they did their best to settle in, opening up casinos in the Capitol Building and Rivet City with some casino equipment that they had been able to save.

The Jacobstown Super Mutants found that they were somewhat unwelcome, but after Vault 101 suffered a radiation leak (Butch was the chief suspect in this, but never convicted) they took over for the displaced Vault dwellers, again opening a successful trading outpost and bodyguard service. With the help of Fawkes, they were eventually accepted by the Brotherhood of Steel. The now twice-displaced residents of Eden and the Great Khans made a home for themselves in Grayditch, along with the residents of Vault 101. The former Vault dwellers were somewhat uneasy at first, but they eventually came to realize that these strange people who showed more of their bodies than the modest vaulties would ever dare to think about showing knew how to survive, and so they started learning from each other. Both the Sorrows and the Dead Horses adopted a more modest manner of dressing that gave them better protection from the cold weather of the East Coast and somewhat resembled a combination of Raider Sadist and Blastmaster armors for the Sorrows and Raider Commando and Painspike armors for the Dead Horses. The Vault Dwellers did not turn to such measures, but they did armor their jumpsuits with pieces of leather armor and combat armor for better protection against the nasty little creatures that still roamed the Wastes.

Sometime around the year 2302, Vault 114 opened to the south of the Capitol Wasteland. This Vault was an experiment in cryogenic preservation, and it actually succeeded. For 225 years, the people of Vault 114 slept. When they awoke, they were immediately confronted with slaver gangs, only to be rescued by Jackal, Bear, and Charon, who had become good friends with Jackal. This was quite the welcome into the new world for these pre-war people who had no prior knowledge of slavers, ghouls, or yao guais. They, too, settled into Grayditch, which by this time had gotten pretty busy. A strange melting pot of vault dwellers, pre-war citizens, ex-raiders, and tribals slowly but surely grew into a large city by the standards of the Wasteland, second only to Rivet city in sheer population.

By this time, Jacob had married his childhood friend Amata and settled down in Megaton to raise their two children, James II and Sara. James followed in his father's footsteps and joined the Brotherhood of Steel when he turned 16 in 2309, while Sara turned her mind towards reverse engineering the technology behind the Zeta aliens' weapons with the help of the Think Tank, which communicated with her via video call. She enjoyed some modest success, and sold the plans for a mass-producible version of the Disintegrator Rifle to the Brotherhood of Steel for a large amount of money. James II, meanwhile, had ascended to the rank of Star Paladin and been accepted as the new leader of the Lions' Pride. Unfortunately, he was killed in a building collapse in 2315.

In 2319, Sara married the oldest son of Clint and Rose of Sharon Cassidy, Kyle Thompson, who was a Paladin in the Brotherhood of Steel and leader of a tier-1 assault squad. Kyle's younger twin brothers, Brad and Boone, also joined the Brotherhood in 2322. All three brothers were excellent shots, but in different ways. Kyle was much like his parents in that he was good with long guns, but neither Brad nor Boone could handle one and hit the broad side of a barn. Brad took to heavy energy weapons and always carried a Gatling laser with him, while Boone opted for smaller, plasma-based weapons, citing their increased damage output and higher maneuverability as reasons. Somewhere along the line, Boone got the scientist gene and started messing around with his plasma rifles. He came up with a full-auto plasma rifle that used two plasma emitters. He called it the "Green Scream." All seemed well in the Capitol Wasteland, what with the population back up to about 24% of the pre-war numbers, until one fateful day in May of 2327…

List of technology that is new or changed from cannon Fallout weapons:

Medium/Large Caliber Ammo – Due to the threat of the Deathclaws, standard and hollow-point versions of ammo were discontinued. All Medium/Large Caliber Ammo is armor-piercing. This ammo is mass-produced in the Pitt.

R91 Assault Rifle – The R91 was reverse-engineered by the Gun Runners in 2285. They combined their knowledge of this rifle, the Chinese Assault Rifle, and the LMG to create the B4 Assault Rifle, which combined the DPS of the LMG, the power of the Chinese Assault Rifle, and the durability of the R91 into one rifle. They re-made this rifle into three variants: the B4-A, B4-S, and B4-L. The B4-A was equipped with a grenade launcher and boasted a laser sight on the left side. The B4-S was equipped with a select-fire trigger, long-range sights, and an extended barrel. The B4-L was made shorter than the others, blurring the line between the Assault Rifle and the SMG, and was equipped with a night-vision sight and an under-barrel shotgun.

T-45d Power Armor – The T-45d Power Armor was discontinued as the standard-issue armor of the Brotherhood of Steel in 2293 in favor of the T-51b. The T-45d is still in use among civilians, but is usually heavily up-armored.

T-51b Power Armor – The T-51d Power Armor was adopted as the standard-issue Power Armor of the Eastern Brotherhood of Steel in 2293. There are upgrades present, such as night-vision lenses, titanium plates (DT of 35 instead of 25), and upgraded servos that allow for more strength without sacrificing agility (in Fallout terms, this means that it has +2 Strength instead of +1). They are also equipped with energy shields (more on those later).

T-53a Power Armor – The T-53a Power armor is a combination of Enclave Power Armor technology and the T-51b Power Armor. In Fallout: New Vegas terms, it has a DT of 50, HP of 2500, WT of 42, Strength bonus of +2, and an RR of +35. It is equipped with night-vision. It is issued to Brotherhood VIPs and Special Forces personnel such as the Lion's Pride. Most have some form of modification, usually either more defense in the form of extra titanium/ballistic plates or built-in weapons such as Power Fists, shotguns, or bladed weapons. In addition, it carries a shield generator that allows it to absorb (not disperse) the energy from energy weapons for a total of twenty fast shots with a Plasma Rifle or over fifty fast shots with a Laser Rifle.

[Author's Note: The energy shields used by the Elites, Brutes, and Spartans use energy to disperse the unwanted energy over the entire shield (hence the glow over the whole body), and so power down with use. The energy shield used by the BoS actually absorbs the energy and stores it in its batteries, kind of like a self-powering lightning rod, if that makes any sense. The difference is, Halo shields just drop for a few seconds while BoS shields literally vent all of their electricity in a giant EMP wave frying electronics and essentially disabling the suit permanently. They can take more hits, but when they're over-taxed it's lights-out.]

Combat Armor – Adopted as the standard armor of the militias of Megaton, Grayditch, and Rivet City, the Combat Armor Reinforced, Mark II is mass-produced by the East Coast Gun Runners. Unchanged from its original form, except for different colors to signify where the wearer is from, this armor gives decent protection against both energy-based and ballistic-based weapons, able to take about two shots from a Plasma Rifle before showing a hole.

Metal Blaster – The Metal Blaster brought back from the Pitt by Jacob King was used as the base model for a new Laser Shotgun, distinctly different from the Tri-Beam Laser Rifle in that it requires no more energy than the standard Laser Rifle. This weapon was issued to the Brotherhood of Steel as an optional back-up primary weapon.

Green Scream – This is a unique variant of the Plasma Rifle created by Boone Thompson. It features two emitters side-by-side running off of the same battery firing in a chain. Each emitter is just as powerful as a normal plasma rifle, and it is fully automatic with a fire rate that is 1.9x faster than the fastest speed that someone could fire a normal plasma rifle, but it is 1.4 times heavier and uses up ammo twice as fast.

Okay, so here's how this is going to go down. I have no idea what should be happening when these two worlds meet. I just bought my first Halo game a few weeks ago. I have no idea how the weapons and armor will match up [Later Note: As you can see, I'm working on it]. That's your job. You message me with ideas about particular events that you want to see, particular weapons you want to be in here, battle plans, character names, and pretty much everything else that you want, and I'll take the best ideas and throw them into this story. I do want to put out a disclaimer, though: this is MY story made of YOUR ideas. All ideas will be credited to the user from which they came, but by submitting them to me you give me full right to use them and edit them within the context of this story. I will offer no explanation for not updating regularly. I might not respond to your messages. I will ignore all whining about "But you said that you would listen to me!" as well as any future ideas from that individual user. We're mostly adults and teens here, people. Let's try not to act like "that 12-year-old noob" that we all know and loath (no offense to any mature 12-year-old noobs that don't constantly whine about not being given free stuff on mmorpg's). I'm not trying to be "that guy" who's all legalistic about this, but I just want to cover my bases. Oh, and if you come up with any funny lines for this thing, feel free to send them, too. I always love a little humor with my blood and gore.

Add-on: I'm writing the first chapter of this thing blind right now and I need some advice about where to go. What kind of story do you want? Do you want pure action, or a little romance thrown in? Do you want the spacecraft from Zeta to be destroyed or serve as a meeting ground between the BoS and the Covenant? Do you want the Sangheli to break from the Covenant like they do in the cannon universe, or do you want them to stick it out, or do you want a bigger break with the Covenant? And how do you want it to happen? Are the Forerunners in the Fallout Universe, or should I go even further back to the Precursors? And what are those Precursors like? Is the Fallout Universe within the history of the Halo Universe? (I'm aware that there was a Tier-1 Human empire prior to the flood thanks to the wikis that I am scouring for as much info as I can) Do the Covenant meet the Zeta Aliens? If so, what happens? ARE the Zeta Aliens the early Precursors? There are a lot of variables here, and I need some advice about where to take this. What can you come up with?

I'm just putting this out there. This story had triple the amount of people viewing it for its first three days than my other story, Searching for an Identity, and just as many follows. When I get 100 followers, I'll be sure to throw a cookie (in the form of a really, really special chapter that I do actually have planned out) to my readers. I'm still looking for ideas, and I can't get the second chapter out without them. I did say that YOU would be writing the plot for this story, and I really don't want to release a chapter with no input of any kind. Again, feel free to give me "stupid" ideas. I love 'em!