Halo Infinite

"You should just consider it Halo 6. Don't think of it as a weird prequel kind of thing. It's the next story. It's the next chapter in what is going on."

- Jeff Easterling

Halo Infinite is the sixth main Halo game, serving as a sequel to Halo 5: Guardians, which was developed by 343 Industries, Certain Affinity, and SkyBox Labs, and published by Microsoft Studios. The game was first unveiled during the opening to Microsoft's E3 2018 conference, with a release date originally being set for late 2020. On August 11, 2020, it was announced that due to ongoing difficulties in development due to the COVID-19 pandemic - among other factors - Halo Infinite was to be delayed, with a new release date set for December 8, 2021. A series of Technical Previews through the Halo Insiders program began on July 29, 2021. On November 15, 2021, the Multiplayer was released in Beta in celebration of Halo's 20th anniversary with all unlocks and progression during this period transferring over to the full release.

Synopsis
As the next chapter in the Halo Universe, Infinite will focus on the Master Chief and continue his story following the events of Halo 5: Guardians. It has been described as a "spiritual reboot" for the franchise.

Campaign
The Halo Infinite campaign comprises of 15 missions.
 * 1) Warship Gbraakon
 * 2) Foundation
 * 3) Outpost Tremonius
 * 4) The Tower
 * 5) Excavation Site
 * 6) Conservatory
 * 7) Spire
 * 8) Pelican Down
 * 9) The Sequence
 * 10) Nexus
 * 11) The Command Spire
 * 12) Repository
 * 13) The Road
 * 14) House of Reckoning
 * 15) Silent Auditorium

Gameplay
Infinite has been described as being a "platform" for the Halo franchise for at least the next decade. It is intended that the game be added to over time, rather than utilizing the previous system of numbered titles. However, the game will not be a live service one; it has been likened as being more akin to Halo: The Master Chief Collection in this regard. The gameplay is inspired by the original trilogy, especially Halo 3, along with the gameplay from Halo: Reach, Halo 4, and Halo 5: Guardians, with a focus on the use of Equipment rather than Armor abilities. Unlike the original trilogy, however, the player has the Sprint ability as well as the Slide ability from Halo 5: Guardians. Like Halo 4 and Halo 5: Guardians, Halo Infinite will not feature playable Sangheili in multiplayer or dual wielding at launch.

Campaign
The campaign takes place on Installation 07, within a seamless open world broken up by linear story missions. the campaign has been described as being larger than the campaigns of Halo 4 and 5 combined. The campaign will have four player online co-op and two-player local splitscreen co-op. As a result of shifting focus towards a higher quality product at launch, the campaign co-op mode will not be available at launch, but 343 Industries plans to include it alongside Halo Infinite's Season 02, which has also been delayed from it's initial estimate of 3 months after launch.

The game includes a dynamic day/night cycles which lasts approximately one hour. Enemies will sometimes act differently per the time of day (e.g. Unggoy sleeping at night). Weather elements such as wind and fog coming in at different altitudes also feature. Rain and snowstorms won't feature at launch, but may be added in the future.

Multiplayer
Infinite's multiplayer became publicly available on November 18th, ahead of the game's official December 8th launch. The multiplayer component is free-to-play, supporting 120FPS on Xbox Series X. Cross-play and cross-progression is available, allowing players to carry customization and progress across all platforms. Competitive playlists are restricted based on input devices across platforms. The game features microtransactions in multiplayer available in the game's shop and an "out of game" progression system. 343 has also confirmed that loot boxes will not be present. Furthermore, Infinite will have seasons similar to Halo: The Master Chief Collection, with each season lasting approximately three months as well as special events known as "Fractures".

The game will have a number of multiplayer maps including the following:
 * Aquarius
 * Bazaar
 * Behemoth
 * Deadlock
 * Fragmentation
 * Highpower
 * Launch Site
 * Live Fire
 * Recharge
 * Streets

With the "vNext" update to Halo Waypoint released on November 5, 2021, players will be able to access armor customizations, Battle Pass progression, and gameplay stats on the Halo Waypoint website and mobile app.

Academy
The Academy is a training mode that allows new players to learn the flow of Halo combat and let veteran players warm up before heading into matchmaking. Players are assisted by Commander Laurette Agryna, a Spartan supersoldier in charge of training new Spartan recruits at the Avery J. Johnson Academy of Military Science, a hidden outpost on a frontier world. There are several sections to the academy, such as a live fire range where players can test out weapons on AI controlled Spartans and a movement course that allows new players to become familiar with Infinite's movement.

Most notably, the Academy allows players to create matches populated by AI bots to test out their skills on hostile opponents. Bot difficulty, starting weapons, grenades, and the amount of bots can all be changed in game. Bots come in four difficulty types: Recruit, Marine, ODST, and Spartan; with the primary differences between them being intelligence and resourcefulness. All bots can use equipment and will keep track of power weapon spawns and will try to use them. Higher level bots will use the Grappleshot.

Forge
Forge will be included in Halo Infinite, featuring an "Undo & Redo" buttons. As with Halo 5: Guardians, Infinite will feature weapon variants of several weapons. Due to technical complexities involved, Forge will not be available at launch, but it is planned to be included alongside Halo Infinite's Season 03, approximately six months after launch.

Armor customizations
The Battle Passes from each season will remain in-game for future purchases, allowing players to unlock armor permutations from past seasons at anytime. The season system will include an evolving story, centered around the player's avatar.

Appearances
{{Featurelist|secondcolumn=title-5|title-1=Characters|

Human

 * Anthony Diaz
 * Avery Johnson
 * Bonita Stone
 * Carter-A259
 * Catherine-B320
 * Catherine Halsey
 * Corilia Brennan
 * Eleanor Klein
 * Emile-A239
 * Fernando Esparza
 * Frederic-104
 * Hudson Griffin
 * Jameson Locke
 * Jacob Keyes
 * John-117
 * Jorge-052
 * Joseph Williams
 * Jun-A266
 * Justine Lopez
 * Kelly-087
 * Laurette Agryna
 * Linda-058
 * Lucas Browning
 * Pilot’s Child
 * Pilot’s Wife
 * Ratul Anand
 * Sarah Palmer
 * SPARTAN-B312
 * Theodore Sorel
 * Thomas Lasky
 * Tomas Horvath
 * Vedrana Makovich
 * Vettel

Artificial Intelligence

 * 117649 Despondent Pyre
 * Adjutant Resolution
 * Auntie Dot
 * BUTLR
 * CIRC
 * Cortana
 * FRET
 * Leonidas
 * LUMU
 * Mister Chief
 * Superintendent
 * The Weapon
 * Offensive Bias

Jiralhanae

 * Arthoc
 * Atriox
 * Balkarus
 * Bassus
 * Escharum
 * Hyperius
 * Ik’Novus the Devourer
 * Tartarus
 * Thrallslayer
 * Tovarus
 * Tremonius

San'Shyuum

 * Minister of Resolution
 * Prophet of Mercy
 * Prophet of Regret
 * Prophet of Truth

Sangheili

 * Chak 'Lok
 * Inka ‘Saham
 * Jato 'Ratum
 * Jega 'Rdomnai
 * Okro 'Vagaduun
 * Ordo ‘Mal
 * Thel 'Vadam
 * Vimo 'Arach

Unggoy

 * Briglard
 * Glibnub
 * unidentified Unggoy comms officer

Endless

 * The Harbinger


 * title-2=Species|
 * Brontotheres
 * Deer-like creature
 * Endless
 * Flood
 * Forerunners
 * Forerunner constructs
 * Human
 * Jiralhanae
 * Captain/Officer
 * Chieftain
 * Warrior
 * Keelbugs
 * Kig-Yar
 * Ruuhtian
 * Freebooter
 * Sniper
 * Raider
 * T'vaoan
 * Lekgolo
 * Mgalekgolo
 * San'Shyuum
 * Sangheili
 * Mercenary
 * Officer
 * Ultra
 * Warlord
 * Zealot
 * Skimmer
 * Unggoy
 * Assault
 * Conscript
 * Mule
 * title-3=Organizations|
 * Unified Earth Government
 * United Nations Space Command
 * UNSC Armed Forces
 * Spartan Operations
 * SPARTAN-IV program
 * Fireteam Taurus
 * UNSC Army
 * Special Warfare Group Three
 * NOBLE Team
 * UNSC Marine Corps
 * Orbital Drop Shock Troopers
 * UNSC Navy
 * Naval Special Warfare Command
 * Naval Special Weapons
 * SPARTAN-II program
 * Blue Team
 * SPARTAN-III program
 * Office of Naval Intelligence
 * ONI Section Three
 * Materials Group
 * Xeno-Materials Exploitation Group
 * UNSC Planetary Defense
 * 22nd First Response Wing
 * 343 Industries
 * Acheron Security
 * AMG Transport Dynamics
 * Aquarius Terraforming Solutions
 * Axys
 * Beweglichkeitsrüstungsysteme
 * Cascade Stronghold Technologies
 * Chalybs Defense Solutions
 * Emerson Tactical Systems
 * FOTUS
 * Fracturess Samurai
 * H2Oh! Vitamin Water
 * Hannibal Weapon Systems
 * Imbrium Machine Complex
 * Jimmy's Books & Stationary
 * Kenya Kola
 * Kenya Vibe
 * Korolev Heavy Industries
 * Lethbridge Industrial
 * Misriah Armory
 * Naphtali Contractor Corporation
 * New Mombasa Energy Company
 * New Mombasa Police Department
 * New Mombasa Transit Authority
 * Ohana Prescient Systems
 * Optican
 * RKD Group
 * Sevine Arms
 * Traxus Heavy Industries
 * Ushuaia Armory
 * Vakara GesmbH
 * Vyrant Telecom
 * Weapon System Technologies
 * Banished
 * Bloodstars
 * Bolroci Workshop
 * Bulwark of Bone
 * Hand of Atriox
 * Kaelum Worskshop
 * Riuctda Workshop
 * Sicatt Workshop
 * Covenant
 * Sacred Promissory
 * Created
 * Swords of Sanghelios
 * Iruiru Armory
 * Merchants of Qikost
 * Ecumene
 * Warrior-Servants
 * Prometheans
 * Crytorium


 * title-4=Locations|
 * Orion Arm
 * Avery J. Johnson Academy of Military Science
 * Launchsite 2A
 * Epsilon Eridani system
 * Reach
 * Eridanus system
 * Oth Sonin system
 * Doisac
 * Gbraakon
 * Orso system
 * Venezia
 * Procyon system
 * Laconia
 * Sol system
 * Earth
 * East African Protectorate
 * Kenya
 * Mombasa
 * Haller Street
 * West Market
 * The Roost Star
 * Kuku's Cafe
 * New Mombasa
 * Hope Station
 * Kenya Street
 * Makupa Station
 * Mombasa Tether
 * Voi
 * Portal at Voi
 * European Union
 * Britain
 * London
 * Sagittarius Arm
 * Installation 07
 * Annex Ridge
 * Armory of Reckoning
 * Auditorium
 * Conservatory
 * Forward Operating Base Alpha
 * Forward Operating Base Echo
 * Forward Operating Base Foxtrot
 * Forward Operating Base Golf
 * House of Reckoning
 * Outpost Tremonius
 * Ransom Keep
 * Tower


 * title-5=Events|
 * Human-Covenant War
 * Battle for Earth
 * Fall of Reach
 * Post-Covenant War conflicts
 * Created conflict
 * Battle of Genesis
 * Battle for Installation 07
 * Installation 07 conflict
 * Operation: BREAKER TRIP


 * title-6=Vehicles|

UNSC

 * AV-49 Wasp
 * Condor
 * Forklift
 * M12B Warthog
 * M12 LRV
 * M12R
 * Scout Warthog
 * M15 Razorback
 * M290 Mongoose
 * M290-M Gungoose
 * M808C Scorpion
 * Pelican
 * Echo 216
 * Tractor unit
 * UNSC starship
 * UNSC carrier
 * UNSC frigate
 * FFG-525
 * YSS-1000 Sabre
 * FFG-525
 * YSS-1000 Sabre
 * FFG-525
 * YSS-1000 Sabre
 * FFG-525
 * YSS-1000 Sabre
 * YSS-1000 Sabre

Banished/Covenant

 * Banshee
 * Banished Banshee
 * Kaelum Workshop Banshee
 * Type-26 Banshee
 * Type-26B
 * Banished dreadnought
 * Ghost of Gbraakon
 * Unidentified Banished warship
 * Banished drop pod
 * Banished skiff
 * Chopper
 * Banished Chopper
 * Bolroci Workshop Chopper
 * Covenant starship
 * Covenant carrier
 * Covenant cruiser
 * Phantom
 * Banished Phantom
 * Type-57 Phantom
 * Ghost
 * Banished Ghost
 * Riuctda Workshop Ghost
 * Wraith
 * Banished Wraith
 * Wraith
 * Banished Wraith


 * title-7=Weapons|

UNSC

 * Assault rifle
 * MA40 assault rifle
 * Battle rifle
 * BR75 battle rifle
 * Combat knife
 * M247H machine gun
 * M247T machine gun
 * M41 SPNKR
 * M46 Vulcan
 * M512 smooth-bore high-velocity cannon
 * M79 rocket launcher
 * M9 fragmentation grenade
 * MLRS-2 Hydra
 * Pistol
 * MK50 Sidekick
 * Shotgun
 * CQS48 Bulldog
 * Sniper rifle
 * SRS99 series
 * SRS99-S7 AM sniper rifle
 * VK78 Commando

Banished

 * Gorespike cannon
 * Carbine
 * Pulse carbine
 * Disruptor
 * Dynamo grenade
 * Gravity axe
 * Gravity mace
 * Chainbreaker
 * Mangler
 * Needler
 * Plasma Cannon
 * Plasma pistol
 * Ravager
 * Shade
 * Banished Shade turret
 * Scrap Cannon
 * Shock rifle
 * Skewer
 * Stalker rifle
 * Type-1 energy sword
 * Type-1 plasma grenade
 * Type-2 gravity hammer
 * Type-2 spike grenade

Forerunner

 * Cindershot
 * Heatwave
 * Sentinel beam


 * title-8=Technology and equipment|

UNSC

 * Artificial intelligence
 * Dumb AI
 * Smart AI
 * Credit
 * Data crystal chip
 * Drop wall
 * Fusion core
 * Grappleshot
 * Heads Up Display
 * System Peril Distributed Reflex
 * Ordnance pod
 * Powered exoskeleton
 * Fracturess Spartan armor
 * Yoroi variant
 * MJOLNIR Powered Assault Armor
 * MJOLNIR (GEN1)
 * Air Assault variant
 * Commando variant
 * CQB variant
 * CQC variant
 * EOD variant
 * EVA variant
 * Grenadier variant
 * GUNGNIR variant
 * JFO variant
 * Mark V variant
 * Mark V[B] variant
 * Mark VI variant
 * ODST variant
 * Recon variant
 * Scout variant
 * Security variant
 * MJOLNIR (GEN3)
 * Anubis variant
 * Argus variant
 * Aviator variant
 * Cavallino variant
 * Celox variant
 * Cohort variant
 * Enigma variant
 * Firefall variant
 * Hermes variant
 * ISR variant
 * Mark V Zeta variant
 * Mark VI variant
 * Mark VII variant
 * Soldier variant
 * Stormfall variant
 * Trailblazer variant
 * Zvezda variant
 * Radio
 * AN/VRC-343
 * Repulsor
 * Shaw-Fujikawa Translight Engine
 * Space elevator
 * TACMAP
 * Threat Sensor
 * Thruster pack
 * UNSC Crate
 * UNSC Marine Corps Battle Dress Uniform

Banished

 * Banished stronghold
 * Gravity lift
 * Jiralhanae power armor
 * Banished armor
 * Jump pack
 * Kig-Yar combat harness
 * Kig-Yar point defense gauntlet
 * Overshield
 * Plasma battery
 * Sangheili harness
 * Sangheili combat harness
 * Unggoy combat harness

Forerunner

 * Activation index
 * Cylix
 * Guardian Custode
 * Halo Array
 * Beam emitter
 * Power seed
 * Sentinels
 * Aggressor Sentinel
 * "Guardian Sentinel"

Common
}}
 * Active camouflage
 * Artificial limb
 * Energy shielding
 * Holography

Overview
A sequel to Halo 5 had entered the planning stages by September, 2015. By this point, the developers were aware of where the story would go, and had begun writing the game. The game has been referred to offhand as "Halo 6," before the official title was announced at E3 2018. Frank O'Connor has argued that the next installment would feature "a much more human story". The studio plans on keeping the cooperative mode introduced in Halo 5. Halo Infinite will have two-player splitscreen, as will all other future Halo FPS games. Early "blue-sky" concept art was produced during this year, depicting the game's setting of a broken Installation 07.

As of June 2017, it has been confirmed that Halo Infinite will not be discussed "for quite some time", implying a longer development cycle. Halo Infinite will have a beta at some point prior to its release. Halo Infinite will also have more focus on the Master Chief by "doubling down" on him. There will be no Battle Royale mode featured according to Jeff Easterling's claim “The only BR we're interested in is the Battle Rifle”, in response to the popular trend during a livestream.

Since the launch of Halo 5: Guardians in October 2015, 343 Industries has been developing a new game engine—Slipspace Engine. The engine was built to help the development team fully realize their goals for the upcoming successor to Guardians, Halo Infinite. First announced with an engine demonstration at Microsoft's E3 2018 conference, Halo Infinite is still currently in relatively early development. The trailer depicted the Master Chief aiding Marines on a Halo installation, encountering wildlife similar to deer and rhinoceroses. None of the wildlife will be hostile to the player.

On a Mixer stream on December 19, 2018, several 343i employees confirmed that players who liked Halo: Reach's armor customization would be pleased with Halo Infinite's. Black undersuits for the multiplayer Spartans was also confirmed. Players who reach SR 152 in Halo 5: Guardians will be rewarded with the "Watchdogs" armor coating in Halo Infinite.

E3 2019 provided more information about the game. It showed an early scene from the game where a pilot of a derelict Pelican finds the Master Chief floating in space in front of a damaged Halo, retrieves him and powers his suit back up; preparing for battle. Another scene shows the Master Chief moving inside of an environment resembling a Halo's control room, and preparing a AI chip with the explicitly deliberate goal of "reconnecting" with someone or something. Additionally, an audio file hidden within the trailer's HUD sequence features Cortana's voice remarking that "This... This is part of me. I don't know why. I don't know how. But it is me."

The Xbox Games Showcase in July served as a substitute for E3 2020 which had been cancelled by the Covid-19 pandemic. A demo was streamed showing the Master Chief and Echo-419's pilot crash landing on Installation 07. It featured gameplay showing an "open-world" gameplay, the return of Sprint, gameplay with the new weapons and two of the new equipment: the Grappleshot and the Drop wall.

Development of the game was slowed in 2020 due to the COVID-19 pandemic, with the pandemic eventually contributing to the game's delay for a 2021 release. The game was originally planned for a release on November 10, as an Xbox Series X launch title.

During the Xbox and Bethesda Games Showcase segment of E3 in June 2021, 343 Industries presented a trailer for the campaign and multiplayer. Multiplayer gameplay, including 4v4 arena, Big Team Battle, and player customization, were shown.

In July 2021, the first Multiplayer Technical Preview went live for selected members of Halo Insider Program. This first preview tested 4v4 bot multiplayer matches, Academy's Weapon Drills, and UI tests on Infinite's Battle Pass, Challenges, menu, and Spartan customization.

By 20 August 2021, Halo Infinite development has entered "shutdown" mode, where the focus has shifted towards bugfixes and reviews on campaign and multiplayer.

Flighting
Flighting via the Halo Insider program will take place sometime in the summer of 2021. Bots, challenges, a truncated Battle pass and only a select amount of Arena maps will be featured in the Flight. All invited accounts will be given a set amount of in-game Credits to use on unlocks. These unlocks will not transfer to the full release of the game.

Features
Halo Infinite is being developed with cross-play and cross-progression available on the Xbox One, Xbox Series, and PC. All platforms support customizable options in field of view and input devices, with players being able to use controllers as well as keyboard and mouse on all platforms. As such, the game also offers additional gameplay settings for keyboard and mouse users, including triple keybinds, advanced sensitivity, and acceleration sliders. Halo Infinite on PC supports interface with Steam and Discord, and comes with customizable in-game settings, including a wide range of display aspect ratios (including 21:9 and 32:9 formats) as well as advanced graphics options.

Art
Halo Infinite will be the first debut of a new artstyle introduced by Nicolas "Sparth" Bouvier; Bouvier having worked as a concept artist for the series' expanded media, drew heavy inspiration from the most iconic and historic parts of the Halo franchise and fan feedback, while ensuring that the fidelity of those designs would take full advantage of the Xbox One's capabilities. The game will focus on the Master Chief, with 343i having taken feedback on the amount of time spent playing as the Master Chief in Halo 5. The studio has stated that they are making changes to how they approach the game's creation, while also taking new and unexpected directions. Community involvement in the game's design will be utilized, with community members being able to join early flighting programs to give 343i direct feedback.

When designing the setting, inspiration was taken from the Pacific Northwest. "Sub-biomes" also feature, representing said biomes from the Northwest. Some unique areas called "Deadlands" appear, representing war-torn areas of the ring.

Audio
Halo Infinite will feature an advanced audio system unlike any seen in previous games. Using a new sound mapping system, in-game audio will be more realistically affected by features of the environment, such as walls and doorways. Another new feature coming with Halo Infinite is "audio threat prioritization," which alerts the player to threats by making the sound produced by enemies—especially that of incoming fire—louder than sounds produced by the player and their allies.

Voice Cast

 * Steve Downes as John-117
 * Jen Taylor as Cortana, Catherine Halsey and "The Weapon"
 * Nicolas Roye as "The Pilot"
 * Darin de Paul as Escharum
 * Ike Amadi as Atriox
 * Debra Wilson as The Harbinger
 * Noshir Dalal as Jega 'Rdomnai
 * Brian Sommer as Tremonius
 * Chris Swindle as Bassus
 * Fred Tatasciore as Chak 'Lok and Spartan Horvath
 * Keith Szarabajka as Tovarus
 * Imari Williams as Hyperius, and Spartan Sorel
 * Sarah Elmaleh as Despondent Pyre
 * Ray Chase as Adjutant Resolution
 * Krizia Bajos as Spartan Stone
 * Zehra Fazal as Spartan Makovich
 * Andrew Kishino as Spartan Griffin
 * Darren O'Hare as Captain Thomas Lasky
 * Pete Stacker as Captain Jacob Keyes
 * Scott Whyte as Spartan Vettel
 * Suzie McGrath as Commander Laurette
 * Joseph Staten as Glibnub and Superintendent
 * Jeff Steitzer as Multiplayer Announcer
 * Julie McNiven as Unidentified mother
 * Aria Towner as Unidentified child

E3 2018 trailer
On June 10, 2018, an announcement trailer for Halo Infinite was released, showcasing the ideas of what 343 Industries have in mind for the game.

E3 2019 trailer
On June 9, 2019, a new, five minute trailer for Halo Infinite debuted alongside the announcement of Project Scarlett. This trailer introduced a new human character, and revealed John-117's fully redesigned armor, alongside a damaged Halo installation.

343 Industries YouTube video
On January 30, 2020, a video was released, that showcased what the developers have in mind for the game as well as shared some comments on the Slipspace engine.

The Art of Halo Infinite
To coincide with the game's release, an associated art book is set to release on December 14, 2021, showcasing the artwork for the game created by the team at 343 Industries.

Signal Detected teaser
On June 24, 2020, a teaser was uploaded to YouTube by 343 Industries. The short teaser features a Jiralhanae voice proclaiming a Halo ring to be under the control of the Banished.

E3 2020 substitute: Xbox Games Showcase
The online Xbox Games Showcase on July 23, 2020, released the Step Inside trailer, followed by a 9-minute demonstration of the campaign gameplay. The Campaign Gameplay Trailer was released as a follow-up.

Inside Infinite
Inside Infinite is a series of monthly updates made by 343 Industries, where several members of Infinite's development team talk about the updates they have made on the game since the Showcase demo. Starting from December 2020, Joseph Staten and other team members have revealed and talked about specific themes in each monthly update, with the updates being planned to be disclosured during 2021:
 * December 2020: Art and graphics updates since the July 2020 Demo, including the first glimpses to Infinite's multiplayer and revealing some GEN3 permutations
 * January 2021: Infinite's sandbox (including weapons, vehicles, and equipment)
 * February 2021: Zeta Halo environments
 * March 2021: Audio design
 * April 2021: Halo Infinite's PC version
 * June 2021: Halo Waypoint support for Halo Infinite
 * July 2021: Halo Infinite's first flighting program
 * August 2021: Post-Halo Infinite ' s first Flight Sitrep
 * September 2021: Halo Infinite's second flighting program
 * October 2021: Character and UXUI (User Experience and User Interface) designs

E3 2021
During the Xbox and Bethesda Games Showcase segment of E3 2021 on June 13, 2021, Studio Head Bonnie Ross and Head of Creative Joseph Staten presented a teaser for the campaign and the Multiplayer Reveal Trailer, "A New Generation". The multiplayer reveal was followed by additional content and information on the following days:
 * 14 June: The Halo Infinite Multiplayer Overview video.
 * 15 June: Halo Infinite Mark VII Spartan Cosplay Guide.
 * 16 June: Canon Fodder on the multiplayer maps, armors, vehicles, and weapons showcased in the reveal trailer.

Season 1 Cinematic Intro
During Gamescom 2021 on August 25, 2021, Joseph Staten presented the introductory cinematic for Halo Infinite's Season 01: Heroes of Reach, focusing on the origins of Spartan Laurette Agryna.

PC Overview
On October 21, 2021, 343 Industries released a video on the development of Halo Infinite on the PC and features exclusive to the PC version.

Campaign Gameplay Overview
On October 25, 2021, 343 Industries released a video on the Halo Infinite campaign, showcasing enemies, weapons, and vehicles. It also revealed the new enemies The Harbinger and the Skimmers.

The Banished Rise
On October 26, 2021, a trailer for the campaign was released, featuring a monologue from the game's antagonist Escharum.

UNSC Archives - Unspoken
On November 2, 2021, 343 Industries released a live-action short featuring Chris Preston, a UNSC marine that was tasked with recovering technologies that would help speed up MJOLNIR Shield System development.

UNSC Archives - Project Magnes
On November 6, 2021, 343 Industries released a live-action short, which featured a civilian engineer that built a prototype under Project MAGNES for the rapid mass manipulation of heavy objects. The prototype would later be used in MJOLNIR's Grappleshot systems.

UNSC Archives - Lightbringers
On November 13, 2021, 343 Industries released a live-action short featuring a group of BXR Mining Corporation miners on a human colony as it was attacked by the Covenant. The group sacrificed themselves to extract an ore critical in manufacturing MJOLNIR's reactive exoskeleton.

Forever We Fight & Carry On
On November 28, 2021, 343 Industries released two live-action trailers. Forever We Fight featured several moments in human history where heroes have risen when they were called upon, while Carry On depicted John-117 fighting Banished Jiralhanae on Installation 07.

Campaign Launch Trailer
On November 30, 343 Industries released a trailer focused on Halo Infinite ' s Campaign.

Memory Agent
On December 8, 2021, hours before Halo Infinite ' s release, 343 Industries released an 6-episodes audio series on Spotify. The series focus on an ONI agent who's mission is to relay critical information to the Master Chief, but her memory resets every seven hours.

Action Figures
After their initial reveal over the weekend at the New York Toy Fair in 2020, Microsoft has revealed higher-resolution images of the upcomingHalo Infinite action figures. The items, which are made by Wicked Cool Toys in partnership with 343 Industries, include collectible figures and "premium" helmets. The 6.5" Master Chief figure is particularly noteworthy because its art and design is seemingly based off his MJOLNIR armor design from the original Halo trilogy. There were also new Unggoy and Sangheili figures, in addition to a life-size Master Chief helmet featuring working headlamps. The images also reveal that there will be new figures for Halo Infinite's villains. Some of these villains remain as TBD (To Be Determined/Decided). One such villain has been revealed to be Hyperius.

Xbox Game Pass
In an announcement on February 24, 2020, Microsoft confirmed that Xbox Game Pass will support first-party games on the Xbox Series X, including Halo Infinite. Additionally, as the flagship product for Microsoft's new Smart Delivery feature, Halo Infinite will be one of many participating games also available on Xbox One, so when players purchase Series X, the user will already own Halo Infinite on the new console. In other words, users playing Halo Infinite, regardless via a Game Pass subscription or a full game purchase, they will possess the Xbox Series X version of the game upon purchasing the console. Owners of the Xbox Game Pass Ultimate will also receive monthly bonuses in Halo Infinite, with the first bundle in December 2021 being the "Pass Tense" MA40 AR Bundle, which contains the "Pass Tense" MA40 Assault Rifle weapon coating, four 2XP Boosts, and four Challenge Swaps.

Brand tie-ins
Although it was announced in August 2020 that the release of Halo Infinite would be delayed, brand tie-ins for Halo Infinite were still released in the months leading up to its original Q4 2020 release timeframe. Additional tie-in products were released in 2021. The tie-in products offer digital codes for players to redeem Double XP consumables for the Battle Pass or exclusive in-game customization options in armor coatings, vehicle coatings, emblems, and nameplates.

Participating brands include:
 * Best Buy
 * Butterfinger
 * Funko Pop!
 * GameStop
 * Jazwares
 * Kellogg's
 * Bear Naked Bites and Bear Naked Cereal
 * Cheez-It
 * Pop-Tarts
 * Pringles
 * MEGA Construx
 * Monster Energy
 * Mondelez International
 * Cadbury
 * Chips Ahoy!
 * Nutter Butter
 * Oreo
 * Sour Patch Kids
 * Trident
 * NERF
 * Razer Inc.
 * Rockstar energy drink

Trivia

 * 343 Industries created a joke script for Halo 6 in 2016, titled Halo 6: Yabda Cuts Loose. It was featured in their mannequin challenge video.
 * The multiplayer map Streets contains an open recycling bin in an alley that when marked, is revealed to be named Oscar's House - a reference to Sesame Street's Oscar the Grouch.