Winter Contingency (event)

Winter Contingency was a multiplayer event of Halo Infinite. It was held between December 21, 2021, and January 4, 2022 during Season 01: Heroes of Reach. Its contents are based on the Christmas holidays, and the manner of unlocking said content was inspired by advent calendars. It is scheduled to occur again in January, as part of the Winter Update.

Event Pass tiers
Items on the Event Pass are unlocked by completing the "Spoils of Sparta" daily challenge each day.