Halo Mass Effect:

The New Dawn

Hello and welcome to my first fanfiction, this is not just a crossover between the Halo and Mass Effect series, but this also crossovers with many other series. This story has been inspired by two already existing stories Halo: A New Age by xpredatorx and MistaSilentKiller and HaloMass Effect: Ruptured Universe by JediSpectre177 (great stories). So you can say this is a fanfiction of a fanfiction, so it goes without saying some of my chapters may mirror pieces of the other two stories (not whole chapters) namely the first six chapters. But you have my word I am not going to simply cut-and-paste these two stories together and call it my own (plagiarism), but I will work my hardest to make this my own by adding my own twists, missions, characters and many more even suggestions from you the readers (so PM me). I would like to thank MistaSilentKiller and xpredatorx for allowing me to use the first few chapters of their story as a template, and thank you to JediSpecter177 for allowing me to use the Twi'lek slave wars and the Ion-Cannons. All these franchises belong to their respective owners. 343 studios, EA Bioware, Respawn entertainment, Lucas arts Disney, Rooster teeth, Hasbro, Bethesda and whoever owns AVP(is it 20th century fox?).

8/26/15 update: Just fixed a few minor things and changed the timeline.

Author note:

Alright you may be wondering why I removed the Jedi from the story, well it was for several reasons. frist, I only wanted the Jedi in the story just for the scene were Yoda trains a student (Shepherd), and that I find the Force and Jedi interesting(not good reasons to even put them in the firs place). Second, after writing a mock fight scene featuring a Jedi I found that it was somewhat boring, I mean a character that is the very definition of being OP (overpowered), what could possibly stop that character... nothing that's why it was boring. Finally I have intended to have stealth/espionage missions in the story (against the OSA), and with Jedi in the story I can't see how they wouldn't be able to stop the mission from succeeding.

On a final note I would like to announce that chapter two will be out on sunday 7/27 (most likely), and thank you to whoever leaves suggestions in reviews or PM.

Chapter One: Begin again

Jun 1987: Humanity has its first recorded encounter with an alien race. An elite team of U.S marines are sent to Central America to rescue a presidential cabinet minister from guerrilla forces. During this mission the team is systematically killed off one by one by an unknown enemy. Only one member of that team survived this event and he claims the enemy was not human.

Jun 1990: During both a heat wave and a turf war between drug cartels another alien mirroring the one that was killed in Central America is spotted.

January 2080: Humanity colonized Mars, Luna and Jovian moons

March 2163: In response to the rebels on Mars Humanity forms the UNSC which goes on to defeat the rebels.

April 2170: the United Earth Government is formed (UEG)

July 2291: The Shaw-Fujikawa translate engine is created

August 2390: Humanity has colonized 200 worlds at this point

May 2475: IMC (Interstellar Manufacturing Corporation) is founded, The IMC creates every thing from home appliances to weapons for the UNSC.

October 2490: The IMC creates the first titans, military exoskeletons used for combat and industries labor.

January 2493: The first IMC titan manufacturing facility is reported to be broken into. Titans, guns and armor are the only things that are reported missing

February 2494: Rebels know as the Militia attacks the outer colonies, also referred to as the frontier. The UNSC is sent into the Frontier to restore order. During all the confrontations it is realized that the Militia was behind the IMC robbery a year ago

March 2495: ONI agent discovered that the IMC have been shipping Titans and weapons to the Militia under the guise of break-ins and robberies of their facilities, they did this to increase the supply and demand of their weapons. The heads of the IMC are sentenced to life imprisonment for supplying terrorists, the IMC is still running under new management.

April 2511: John117 is born

May 2517: ONI abducts human children to begin The Spartan-II program

January 2525: The first deployment of the Spartan-IIs, the results of the Spartans are devastating with amazing results against the Militia.

February 2525: An alliance of alien races know as the Covenant appear over the planet of Harvest, the leaders of the Covenant declare that humanity is an affront to their gods the Forerunners, the Human Covenant war begins. With the appearance of the covenant the Militia sign a peace treaty with the UNSC, ending the war to focus on the Covenant.

March 1, 2531: To combat the Covenant the UNSC green lights the Spartan III program, using orphans from the Covenant war to fill its ranks.

January 3, 2536: the Spartan-III makes their first appearance. Though they do not have the same level of augmentations that the Spartan-IIs had, they made up for it with numbers.

May 5, 2538: A San 'Shyuum know as the prophet of faith learns the truth of humanity being connected to the forerunners, after reading some secret messages between the prophets of Truth, Mercy and Regret. Giving this Intel to other high ranking Covenant leaders they order their deaths for treason. The Arbiter at the time Ripa 'Moramee is sent to their chambers to execute them, on his arrival Ripa was able to kill Truth and Mercy ,but it appeared Regret caught wind of Rip's orders and fled High Charity.

May 9, 2538: The UNSC colony groombridge-1830 located 29.7 light years from sol is visited by a Covenant corvette, at first the colony thought they were under attack instead the corvette sent a signal to the planet requesting a ceasefire between the covenant and humanity. The UNSC sends Admiral Preston Cole and a fleet of a hundred ships to confirm the Covenant request for a ceasefire.

May 10, 2538: The Human-Covenant war is over a treaty was signed to signify peace, the Covenant offer to help in repairing the human colonies they themselves glassed. They also offers humanity a place in the covenant, the UNSC agrees in exchange to access to covenant technology. Due to the Covenant tech the humans and A.I.s life span have doubled.

April 1, 2539: After a year of being with the covenant the UNSC wanted to change the covenant's caste system and how other species are treated, the San'Shyuum and Sangheili were hesitant to change but considered it. Eventually it was decided to disband the Covenant until these tree species (Humanity, Sangheil, San'sahyuum) could decide on a greater form of government.

April 11, 2539: Without the guidance of the Covenant the Jiralhanae of Doisac revert back to warring tribes. A Chieftain know as Ulysses began to grow a large following among his people, spreading words of change, peace and for a better future for his people they call themselves the revolutionists. Another Chieftain known as Tartarus sees this as an upfront to their people and culture, he also grows a large following of loyalists. These two Chieftains points of view start the Jiralhanae tribal wars.

May 15-18, 2540: After much debate amongst the Humans Sangheil and San'sahyuum they decide on a new form of galactic government called the Orion System Alliance or OSA, this government would be ran by the senate. The senate will be composed of one ambassador of each member spaces, but the three strongest races would hold the most power, calling themselves the council. The other races such as the Kig-yar, Unggoy, Mgalekgolo, Huragok and yanme'e join the OSA.

January 25, 2541: After two long years of war on Doisac Ulysses and his revolutionists win the war, using not brute force but ingenious tactics. During the final battle Ulysses challenged Tartarus to a duel, Ulysses old glory vs Tartarus's fist of Rukt. Ulysses won the battle and claimed the fist of Rukt for himself, Ulysses now welds two of the strongest gravity hammers of his people.

January 29, 2541: Using the remnants of their former fleet the Jiralhanae make contact with the OSA asking to join them. The senate is hesitant to let these brutes join at first, but after learning of what has transpired on Doisac they accept the Jiralhanae to the OSA.

March 12-15, 2547: Eight Spartans are abducted from Reach by an unknown alien race with advance stealth capabilities. After a few days a distress signal reaches an OSA fleet, it originated from an uncharted planet. The signal was sent by the missing Spartans, once they were picked up they debriefed the Senate of what happened to them.

It is learned that the Spartans were abducted to forcibly participate in the unknown races hunt, using data scavenged from a crashed alien ship leads the OSA to the home world of this unknown race. The world they find is inhabited by a race of hunters called the Yautja of the Yautja Empire. Making contact with this race it is learned that they hunt rear and sentient species for sport and proof of worth. The Senate offers the Yautja a chance to join the OSA, the only condition is they have to stop the hunting of sentient beings or they maybe face war. The Yautja Empire grudgingly accept. The humans are the only ones that are wary of the Yautja do to tails of their exploits on earth.

March 29, 2547:A Group of Yautja who call themselves "The Chosen" rebel, they deliberately breaking the agreement between the OSA and the Yautja Empire. Both OSA and their own species constantly hunt them down for their crimes

April 10, 2555: The Prophet of Regret makes his return, but he is not alone. During his absence he gathered every Sangheil and Unggoy zealot he could find, and with a fortune he created when he was one of the heads of the Covenant hires every Kig-yar pirate (nearly all of them and their ships) he could afford. He lunches an all-out "Holy Rebellion" on all of OSA space, they call themselves the covenant remnants. Using gorilla and hit and run tactics they become a nuisance to all OSA races.

April 20, 2555: With the presence of this new threat the senate decides to combine all of their intelligence gathering organizations into one, to better share Intel with one and other. ONI successfully absorbs all other organizations.

Jun 2, 2557: On the planet Harvest ONI discovered what they believe was a forerunner outpost, a science team is sent to study it. Head scientist Professor Ellen Anders discovered a holographic map of the galaxy which leads them to another forerunner outpost on the UNSC colony Arcadia. The UNSC Spirit of Fire under the command of Captain James Cutter is assigned to help ONI in search of the other forerunner outpost, The Spirit of Fire heads to Arcadia.

Jun 4, 2557:Spirit of Fire arrives at Arcadia only to discover that the planet is under attack by the Covenant. After the battle Ellen Anders discovers that the covenant obtained a copy of the forerunner data before her, she finds coordinates to a planet in an uncharted system unknown to the OSA. Arbiter Ripa 'Moramee and a small fleet are also sent to help Captain Cutter to reach the plane and stop the covenant.

Jun 7-8, 2557: On their arrival to the planet the OSA fleet discovers the Covenant fleet battling an unknown fleet, there battle end in a draw with the Covenant fleet fleeing to the planet's surface and the unknown fleet loosing most of its ships. The Arbiter orders all Huragok to hack the damaged fleets ships in order to translate there language to make contact, this takes nearly six hours to do but it works.

Making contact with the unknown fleet it is learned the race is called the Twi'lek and that the planet was once there colony. The Twi'lek also told them of the day there people discovered what was beneath the surface of the planet, and the parasite that was waiting inside. The Twi'lek were not able to hold the planet against the parasite so they set up a permanent guard around the planet. The Arbiter tells the Twi'lek admiral of the threat the Covenant possesses and it would take their combined forces to defeat them, the admiral agrees to join the fight.

Jun 9, 2557: Both groups made it to the center of the planet were it is discovered that the planet holds a fleet of forerunner ships, the sheer number of the ships could turn the tide of the rebellion. Captain Cutter devises a plan to stop the Covenant and the parasite in one move, the engineers of the Spirit of Fire is used to create a bomb strong enough to destroy the planet. During the mission to escort the bomb it takes to much damage, the bomb must be detonated manually the Arbiter volunteers to stay and activate it, saying it is his duty. The bomb detonates distorting the planet, the parasite and the Covenant forces.

Jun 11-15, 2557: Returning to OSA space Cutter informs the senate of what happened. The senate applauds his work in defeating the Covenant and finding a new race, he is promoted to admiral. The Twi'lek are asked to join the OSA, they agree but soon it is learned that the Twi'lek practice slavery the Senate allows them to continue the practice only in their territory and on their own people, the Twi'lek agree to the terms. The Twi'lek gives the OSA Droid, Ion-Cannons and hyper drives tech.

March 10, 2560: The final Covenant strong hold is destroyed effectively ending the rebellion. With so many Kig'yar pirates killed their civilians were able to easily take control of their government. They effectively end the practice of piracy for their people, forming the Kig'yar trade federation.

April 2, 2563: IMC creates their own line of synthetic workers used for labor, security and war they are called specters.

February 1-4, 2566: Twi'lek slavers attack a Human colony, the Senate asks for the return of the captives or they will pay, the Twi'lek clam that slavery is deeply enrooted in their culture and to return the slaves would be disrespectful to their culture and would lead to war. OSA forces attack the Twi'lek slave camp successfully saving all prisoners, the Twi'lek Slaver wars begin. Many Twi'lek civilians, solders and slaves who wish to end slavery join the OSA's fight against the slavers as rebels. Do to the OSA overwhelming numbers Twi'lek scientists(slavery loyalist) begin create a massive army of droids to fight back.

July 20, 2567: The battle for the plant Demeter begins. Captain Marcus Graves of the UNSC Odyssey is assassinated by a Twi'lek double agent, his crew is left leaderless while the slavers attack the colony. A specter with increased intelligence rallies the Odyssey's troops and leads them to victory. After the battle the Odyssey's crew question the specter, it claimed that it doesn't know why it has more intelligence them it's brethren but if they are willing to fallow him he will lead them to future victories. The specter calls himself Spyglass.

October 10, 2569: The Twi'lek slavers see that they are losing the war. Panicking Twi'lek scientists believe by increasing their droids intelligences they will become better tools of war. After the upgrade many droids turn on their handlers after seeing what they wanted them to do (kill and enslave).

December 20, 2569: The newly upgraded droids contact the OSA forces informing them on an impending attack from the Twi'lek slavers, they even give them the location of the slavers largest stronghold to launch a preemptive strike together. Nearly all OSA Admirals and Captains believe this is a trap, the only ones to send their ships to the location are Ulysses and Spyglass. Their combined forces deal a devastating blow to the Slavers war assets. This victory gains the Jiralhanae much respect within OSA space for their battle tactics, and saving all captive slaves this also makes the senate aware all sentient Droids.

January 3, 2570: With the OSA's help the Twi'lik government and slavers are overthrown. They elect Aleana'Ora one of the rebel leaders to be their leader and become Queen.

January 11, 2570: With the raped increases of sentient droids and specters (A.I. overall), the Senate begins to panic, some believing that they will try to overthrow them. A.I.s such as Cortana, Spyglass and many others insure to the senate that all they want is peace. These A.I.s create laws for synthetics that both sides can agree to fallow. Cortana and Spyglass become the representatives for both hardware and software A.I.s. Spyglass is also named as the first synthetic Admiral.

March 11, 2572: The treaty of Demeter is signed. This treaty allows all OSA species to create as many war ship as they what, but the number must be reporter to the senate. The treaty also limits the number of super-carriers each species are allowed, the council races each have three while member races are limited to one.

January 27, 2574: The Unggoy newly founded colony LV-426 has gone dark. The Senate sends a force of their best solders to investigate, its discovered that the colony is over ran by a species that the Yautja call Xenomorphs only a hand full of colonist survive. The planet is cleansed of the Xenomorphs presence, the planet is once again habitable and renamed Oasis.

September 19, 2578: A UNSC patrol fleet under the command of Admiral Jacob Keyes discovered an object in space it is of forerunner design, a ring the size of a planet. Captain Keyes took images and sent them to the Senate. The Senate received the images and looked through the information they obtain about the Forerunners, what they found was the ring is called Halo and it was an important part of the former covenant religion. The OSA council thought it would be best to hide this info from there civilians.

September 26, 2578: Science teams from the OSA were sent to halo to study it and to find out its purpose. A team accidentally opened a chamber that released a parasitic life form that consumed the science team, the military contingent on halo sent out the message to an OSA group of ships that was assigned by the Council to protect the ring, a video link about the parasite to both a UNSC ship and a sangheili battle cruiser the images of the parasite showed it consuming all species it came in contact with , it was decided by both Admiral Keyes and Shipmaster Thel 'Vadam to sterilize the surface of the ring with a combination of nuclear missiles and plasma weapons, but the interior of the ring still needed to be cleansed. John-117 leaders a ground assault to the interior of the ring distorting all traces of the parasite. After the battle the UNSC give John-117 the honorary rank of Master Chief, and gives him command of all Spartan forces.

September 29, 2578: The ring is confirmed safe, science teams are sent in again. ONI sends in their own team led by the great Dr Catherine hasley. On halo the team found what they believe to be the control room for halo. Once they were settled they were approached by a forerunner A.I. calling itself 343 Guilty Spark. Through the A.I. they learned much about the forerunners, the parasite (now known as the flood) and about halo being a weapon of mass destruction on a galactic scale. It was decided by the OSA council to keep quiet about this information as it would cause a mass panic and hysteria amongst their people

October 1, 2578: Through further studying halo and continued talking to the monitor of installation zero four (this halo) the OSA learned that there were seven halos in total scattered around galaxy. The monitor 343 guilty spark was unable to divulge the location of the remaining six halos but told the scientists how they could by finding the Ark through a portal that was on earth.

October 5, 2578: The UNSC was very surprised by this information of an important forerunner technology was under their noses the whole time, using the reversed engineered luminary used by the covenant to locate forerunner tech, they found some readings between the city of New Mombasa and the town of Voi deep underground, Excavation began.

November 24, 2578: The artifact is uncovered and moved to a safer location. It is learned that the device created a slip space portal to what the scientists believe will lead them to the Ark. The OSA forms an expedition through the portal. The fleet is composed of both scientists and the military ships. The commanding officer who is in charge of the fleet was decided to be captain Miranda Keyes, Catherine Hasley was in charge of the scientist division and military ground forces sent as guards are led by Sgt. Avery Junior Johnson.

November 25, 2578: The expedition fleet came out of slip space over what they believe to be the ark, a massive superstructure bigger then high charity located at the very tip of the Orion arm, it is described as a massive wheel with a series of eight curved arms, bearing similarities to a sun. They begin launching pelican drop ships to what they believe to be the control room for the entire facility.

December 1, 2578: Scientists from every OSA species arrive at the ark. Each species begin to set up labs and housing on different arms of the ark. The OSA's militaries pulling their resources together begin building a ship yard to build and maintain their ships.

December 25, 2579: Studying the Ark the OSA scientist learn new medical treatments, ship/weapon upgrades and a lot of forerunner knowledge. There is still much knowledge locked away within the Ark (the other Halo locations).The average lifespan of each species is doubled thanks to the studying of the ark.

January 20, 2582: With so many races in the OSA the Senate create a digital economy so that all races have equal footing with one and other.

February 12, 2590: The OSA Senate decides to start joint colonel plans to fully bridge the gap between all races

March 15-20, 2620: The science teams on the Ark pick up a distress signal, the signal is in binary (the universal language of synthetics) coming from an uncharted area of space. The senate organizes a recon fleet to investigate the transmissions origins. The fleet arrives at the origin of the distress signal, what they find is a planet devoid of any thing organic. The fleet splits into two smaller fleets and each are sent to what appeared to be the two capitals of the planet, each group have different results. The first fleet is shot down over a city of dark metal, the remnants of the ships are captured. The second fleet arrive to a once great city devastated by war. The fleet makes contact with the inhabitants, they are a massive synthetic race called Cybertronians, machines that can transform into vehicles. There leader Optimus Prime tells of their War for Cybertron against the Decepticons, the captain of the OSA fleet tells of their alliance and claims that if the Autobots were to join the OSA they could send reinforcements to aid there war. After discussing this with the Autobots council they agree to join the OSA.

March 25, 2620: The newly founded colony of Shanxi discovered an artifact encased in ice located at the edge of the system, excavation beings. A massive OSA fleet arrives at Cybertron to aid the Autobots.

March 31, 2620: The OSA forces advance on to the Decepticons capital city, the artifact near Shanxi is clear of ice and OSA scientists begin to study it. Humanity along with their allies begin to enter a new age, a new Dawn what will they discover and what will be waiting for them?

OSA Codex: The OSA

The OSA or Orion Systems Alliance is the Galactic government that controls the Orion arm of the galaxy. The OSA is controlled by the senate, the senate is where all members of the OSA voice there concerns and have them resolved.
The senate is formed of one representative from each race, the senate also has a council that is formed of the three founding races of the OSA. When the senate need to decide on any problem they debate then vote on an appropriate course of action, members votes are worth one vote While Council votes are worth two votes.
The OSA Senate is not the supreme ruling body of all OSA governments each species still have there own government, rather the senate helps all OSA races come together toward peace and unified goals(like the UN).