Winter Update

Winter Update was an update for Halo Infinite's multiplayer and campaign, and launched on November 8, 2022.

Ancillary materials

 * Halo Waypoint Story & Intel: Story and Intel released on Halo Waypoint to expand upon the characters, events, and miscellaneous details of the season.

Season content

 * Free 30-tier battle pass, based on Mark V(B) armor core
 * New multiplayer arena maps: Detachment, Argyle, and Empyrean
 * New multiplayer mode: Covert One Flag
 * New features
 * Campaign network co-operative play
 * Campaign mission replay
 * Forge open beta
 * New Forge canvases: Arid, Mires, Institute, Seafloor, Ecliptic, and Void
 * Match XP beta
 * 24 new Achievements inspired by Mission Replay and Co-op, worth 400 Gamerscore
 * New unlockables by achieving 100% completion on campaign
 * Custom Game Browser
 * Various quality of life improvements
 * Yoroi, Eaglestrike, and Rakshasa armor cores made free for all players
 * 10 Cadet armor coatings available for all armor cores
 * Red reticle for PC players
 * High Dynamic Range Toggle
 * Mute and report players during matches
 * December event: Winter Contingency II
 * January event: Joint Fire

XP Boosts

 * 5 XP Boosts

General Customization

 * 1 Nameplate: Brooch
 * 1 Armor Emblem: Brooch
 * 1 Weapon Emblem: Brooch
 * 1 Vehicle Emblem: Brooch
 * 2 Visors: Sardonic, Bullfrog

Mark V(B) Core

 * 1 Armor Core: Mark V[B]
 * 3 Helmets: Mark V, CQB, CQC
 * 1 Helmet Attachment: UA/Type C1
 * 4 Shoulder Pads: SAP/GND, SAP/CQC, SAP/SEC, SAP/SEC[K]
 * 3 Chests: TAC/Kukri Machete, UA/SIMA, UA/TAAP
 * 1 Knee Pad: UA/Type GR
 * 1 Utility: UA/TYPE CHOBHAM
 * 1 Armor Coating: Moa Assault

Events
Please see the respective event pages for their Event Passes.