My base of ideas for a prequel to Halo Infinite
Halo: Uprising
Aftermath: The story starts on Sanghelios. The Infinity and co are currently planning a counterattack against The Created amidst the outskirts of Sunaion, as multiple reports are still coming in from across the galaxy as The Created take over. We see Chief step out of a tent as his helmet is on a crate. He puts it on, and the title screen appears as the Halo 1 Reveille (when Chief’s cryopod was thawing) Ost plays.
First Strike: The Covenant Remnant Prophet of Transcedence Ok’amia, that has been the lesser known face of their leadership and his fleet are currently still grounded due to the Guardians activation the day before. Chief and Arbiter infiltrate their makeshift compound to capture the Prophet, who was forced by M’dama to be the face that his Covenant look up to, and offer an alliance to get out of Sanghelios and face The Created together. With morale on both sides at their lowest, they reluctantly join sides.
*Or no Prophet and it’s just what remains of the Storm Covenant
Outnumbered: Chief continues to enact the plan, as he travels to the Warrior’s Abyss to lure the remaining Covenant into a trap, facing countless odds (Lone Wolf Style) until the Infinity, Swords of Sanghelios arrive to stop the fight.
Revelation: The Master Chief heads to a rumored Sanghelios Forerunner Facility in the hopes of contacting anyone on the outside who may help, or needs it. He discovers how bad everything really is, as Halsey calls Chief and gathers everyone, and tells them of a secret project she has been working on for the past couple few years: The MJOLNIR Mark VI GEN 3.
On the Road Again: Infinity infiltrates Damascus so Halsey can finalize Mark VI GEN 3 for Chief as Covenant forces close in.
Shadows of Reach: The video game adaptation of Shadows of Reach if it happens within this timeframe.
Return: Infinity and co arrives at a fallen Earth. A massive battle occurs in space as a Covenant-Created fleet blocks their path.
Rebellion: Chief and co fight to take back Earth on the rebuilt Mombasa from Cortana.
Zeta Halo: As Cortana and her fleet flees, repurposing the Ark Portal, as Chief and the Infinity follows. They crash on Halo Installation 07, and must reunite before they are slaughtered.
Infinity: Chief and Survivors reunite with the Infinity and must clear out hostiles as repairs are made and the power is restored.
Shutdown: After an encounter where survivor reports describe a large Promethean, The Master Chief takes a group of Marines to Zeta’s Control Room to locate a Shutdown Facility on the Ring to disable Warden Eternal for good with the help of Exuberant Witness.
Reunion Tour: The Swords of Sanghelios have arrived after the space battle above Earth and help Chief reach the Shutdown Facility.
Uprising: The Infinity launches a massive strike against an Island that’s controlled by Cortana and the Created and The Covenant. After dealing a massive blow against The Created, Cortana makes the hard choice to desegment parts of the Ring to stop the UNSC.
Some of my ideas for Halo’s Art Style for Uprising
UNSC
Infinity Marines would have the Halo 4 Chest Armor, 4 Shoulders, 4 Helmet (the one variant of the four of them that looks like the Reach Helmet), 4 collar and most of the rest of the suit would be similar to Reach(?), etc
Spartans would have the Halo 3 Armor with the Halo Reach Knife(you can choose where it is placed), Halo 4-5 undersuit (in Black), Halo Reach and 4 style customization and armor (all of Reach’s and the good ones in 4/5) but expanded upon. Same thing with Elites with multiple Armors from the multiple installments and etc
Covenant
All Elites would have the Halo 2 Anniversary Body Shapes and Halo 2 Anniversary Bodies as well as full black Arm Coverings
Elite Minors- Halo 1 Anniversary Helmet and Shoulders with the patterns from the Original 4/5 design, 4-5 Armor for the most part (No spine armor for Minors)
Elite Majors- Halo 4-5 Armor (maybe they’d have the Reach Officer and CEA Major Helmet?)
Elite Zealot- Halo Reach Zealots but with Halo 4 Colors and textures
Elite Honor Guards- Halo 4-5 Zealots with Honor Guard pieces for the higher ranking
Elite Spec Ops: 1A version with Halo 4/5 Warrior Shoulders and Spine Armor
Elite Airborne- Basically the same from 4/5 but with the Halo 2 Airborne Helmet
Swords of Sanghelios Elites would be the Halo 2 Anniversary version, and for all Swords of Sanghelios allies they’d be bright enough red to distinguish the darker Banished
Grunts would have their Classic Body
Grunt Minors- Halo 3 versions for The Covenant, Halo Reach versions for the Swords of Sanghelios
Grunt Majors- Halo Reach version
Grunt Spec Ops- Reach for Swords of Sanghelios, 4-5 Imperial Grunts and 3 versions and Reach Ultras for The Covenant
Jackals- Basically the Classic Body with the 4-5 armor being used by Spec Ops
Hunters- Halo 2A version but with Reach’s colors/lights and grit
Drones- They’d be back and the same.
Brutes/Banished- Halo 2 Anniversary and Halo Wars 2 versions
Prometheans
Knights- a more grounded amalgamation of their concept art and beta build version and the final version from 4
Watchers- No feet and face would be the 4 Auto Turret’s
Crawlers- the same but maybe darker?
Master Chief: 5 Version with full Black Undersuit, and his Finger Armor Black, and without the Red Stripes until he converts to his Mark VI GEN 3 at the end of On The Road Again
Mark VI GEN 3 would be as it is in Infinite but he’d still have his Finger Armor, and he’d have a new Ammo Belt like Halo 1 that he’d lose at the end
Also if you Complete On The Road Again on Legendary you will unlock the ability to play as 5 Chief or Infinite Chief for the whole game as an Option
This is just the much bare minimum simplistic description of these ideas and there’s plenty more in my mind surrounding this