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The Master Chief returns in Halo Infinite – the next chapter of the legendary franchise. When all hope is lost and humanity’s fate hangs in the balance, the Master Chief is ready to confront the most ruthless foe he’s ever faced. Step inside the armor of humanity’s greatest hero to experience an epic adventure and explore the massive scale of the Halo ring.

The first season of Halo Infinite's multiplayer ran from November 15, 2021 until May 3, 2022. Many of the customization options available in this season are exclusive for the Mark V(B) armor core, based on Halo: Reach's armor permutations, including armor kits based on NOBLE Team's permutations. The Season also features customization options for the Mark VII armor core and other options for players, such as Death animations.

Be hope in times of darkness. Return to the Academy and repel the Banished in Operation: Last Stand, live now through June 10. The captured AI Iratus has exposed the location of the Spartan Academy. It’s up to you to fend off a Banished onslaught in Firefight: Battle of the Academy, a new linear Firefight experience where securing objectives is tantamount to survival. Can you outlast your foes long enough to enact the Cole Protocol? The 2025 Summer Update arrives in Halo Infinite with new playlists, a devastating new power weapon, expanded Weapons Bench customization options, and a last stand for some of humanity’s most decorated soldiers.

It’s that time of year again where there’s a chill in the air, the wind howls and bites as the night comes early, a thin mist settles over the fields, and humanity marches on—their minds and bodies fueled by pumpkin spice lattes... With this change of the seasons, it is also time for a new Halo Infinite Operation. Welcome to Haloween! Get yourselves in the Haloween mindset with the Survive the Undead playlist. Grab your friends, gear up, and jump into a unique twist on Halo Infinite’s Firefight experience as you stand your ground against endless waves of enemies that have been banished from their graves. Celebrate Haloween with a free new Operation Pass, consisting of 20 tiers and featuring the Spartanstein armor set. This free cosmetic Halloween-themed "operation pass" launched aside this update and ran from October 8, 2024 to November 5, 2024. It was made available in perpetuity to those who purchased the pass.

Halo Infinite Season 4 brings Infection to the game, a military career rank system, improvements to spartan customization, new maps, additional forge features, a new battlepass, and more.

Lone Wolves, gear up for Season 2 of Halo Infinite! Experience fresh content including new maps, modes, themed limited-time events, and an all-new Battle Pass that never expires.

Operation: Great Journey launched as part of Halo Infinite’s 2024 Winter Update to coincide with the 20th anniversary of Halo 2. The update includes a new weapon, sandbox balance changes, a playlist featuring Halo 2-inspired gameplay and classic maps, a new Operation Pass, and updates to Forge.

Season 3, titled "Echoes Within," will include new maps and modes, sandbox items, expanded customization, a 100 tier battlepass, and the Custom Games Browser feature.

Operation: Champions was a limited-time event in Halo Infinite. It focused on gladiator-style customization for Spartans and introduced a 20-tier free Operation Pass featuring the Athlon armor core, originally seen in Halo 5: Guardians. The pass included armor pieces, coatings, and other cosmetics centered on an arena combat theme. Additional themed bundles were available in the shop.

Operation: Brute Force was a limited-time event in Halo Infinite. It introduced the Chimera armor core inspired by the Jiralhanae (Brutes), alongside a 20-tier free Operation Pass containing armor pieces, coatings, and cosmetics. The event featured themed shop bundles and added new customization items focused on Brute aesthetics. No major gameplay changes or new modes were tied specifically to the operation, but it continued the seasonal content cadence of the game.

UNSC cadets are taught to imitate—and thereby venerate—the martial actions of humanity’s time-honored heroes. Operation: Warpath ennobles their legend with myth-made armor sets, the epic resurgence of Invasion mode, and a return to hallowed tradition in the Ranked Legacy rotational playlist. Harken ye to the drums of war. Operation: Warpath sallies forth!

New directives received. Operation: Shadows has the green light. ONI’s latest intel reports a new weapon, a new vehicle, and two dangerous new modes that enshrine them both in all their glory. All Spartan operatives are hereby encouraged to report to Famished Famished Falcons to earn their wings in the Falcon, followed by extensive drills with the new Vestige Carbine on the proving grounds of Banished Slayer. Complete the latest free 20-tier Operation Pass to acquire the new Whisper armor set. Upgrade to the Premium Operation Pass to unlock a durable, 50-tier reward track featuring four full armor sets and an exclusive bundle of classified customizations. Arriving with expanded Weapons Bench customizations, improved Firefight features, and a massive Forge overhaul, Halo Infinite’s Fall Update is one op you won’t want to miss. Risk it all. Deny everything. Play Operation: Shadows through September 9.

An all-new Battle Pass featuring Flood-inspired rewards, new maps, a new mode, and a sophisticated AI Toolkit for Forge. Coming later in Season 5, Firefight: King of the Hill offers a refreshing twist on the beloved co-op wave-survival mode. Season 5 - Reckoning also brings with it multi-core helmets, Match XP in Custom Games, a new Mark VI reward for reaching Hero Rank, and more.

Welcome to Blue Team, Spartans. This legendary Spartan-II team has a prodigious combat record spanning well over two hundred military operations against all kinds of foes—from the colonial insurrection to the Covenant, and the many threats that have arisen in recent years. While John-117, Fred-104, Kelly-087, and Linda-058 have typically been the primary members of Blue Team, the roster has evolved over time—and now it is time for you to join them. Operation: Blue Team is live from March 11 to April 8

Touchdown, hit it marines! The 2025 Spring Update for Halo Infinite begins with Operation: Frontlines. Get your gauntleted hands on the Fuel Rod SPNKr, a new weapon for Halo Infinite based on an old Covenant favorite—now repurposed by the Banished. Fashion your Spartan with the finest flair in the brand-new Operation Pass, a vastly expanded offering for the first Operation of each major Update that now brings 50 tiers of customization rewards. Give the enemy team back their bomb as the classic Assault mode returns, and that’s just the tip of the iceberg...

This content update brings a bunch of additions and improvements to the game, including the return of two beloved modes from Halo 3 and Halo: Reach, a veritable swath of enhancements to Forge, major sandbox changes, a free new Operation Pass, and more. The free cosmetic "operation pass" which launched aside this update ran from July 30, 2024 to September 3, 2024. It was made available in perpetuity to those who purchased the pass.

Turn back the clock. Operation: Legacy revives the iconic Halo 3 multiplayer experience with a retro Delta Arena playlist, iconic maps, fueled-up Grifball modes, and hallmark helmets from the glory days of 2007.

It’s time to reclaim what was lost. Fight for the grace of the Mantle in Operation: Forerunner, live now through May 6. Once the galaxy’s self-appointed caretakers, the Forerunners have left behind many secrets in the form of sacred rings, colossal installations, mysterious artifacts—and devastating military technology. The latest free 20-tier Operation Pass offers a chance to reclaim the Prefect armor from the annals of history. Reverse-engineered from the combat skin of the Forerunner Prefect class, this fan-favorite Halo 4 armor set has been adapted and reforged for a new chapter in Spartan excellence. Complete all 20 tiers to prove yourself worthy of the title. May your foes tremble before you!

Content Update 29 (“CU29”) brings a new Arena map, a Covenant object palette and new Forge features, a new armor core and customization rewards, and the first of three free Operations—starting with the Halo Wars-themed “Spirit of Fire.” This operation will be followed up by "Cyber Showdown III" and "The Yappening II" operations. Playlist refreshes will also launch during CU29, including new map additions to the Big Team Battle, Firefight King of the Hill, and Squad Battle playlists. CU29 will be the first of many future planned updates that will replace the current "season" model, electing instead to provide smaller content drops but at more frequent intervals.

Welcome to Anvil, Spartan. Let’s get you acquainted with your new Operation. Anvil Station is home to a multispecies partnership between the UNSC and their alien allies from the Arbiter’s Swords of Sanghelios. While wounds from the Covenant War are still fresh for many, there are also emerging generations of both species for whom the war will be but a memory. On Anvil Station, humans and Sangheili work together to test experimental prototypes, including new Spartan armor variants. A new 20-tier Operation Pass, an exciting new Big Team Battle mode, a refresh of The Exchange, and more await!

Operation: Snowbound brought a winter wonderland to Halo Infinite with revived classic maps, fresh festive modes like 1v1 Showdown and Snowball Fight, a rewarding Pass (free and premium), plus tons of holiday cosmetics to unlock or purchase.