It’s set to take place from December 16 at 10am PT / 1pm ET / 6pm GMT until December 21 at the same time.
Players will be able to sample 10 maps and four modes during the free access period, including Team Deathmatch, Domination, Hardpoint and Vanguard’s new survival tournament mode Champion Hill, Activision said.
During the free access period, Vanguard will offer maximum double XP bonuses (Player XP, Weapon XP, Operator XP, Clan XP and Battle Pass XP).
The free multiplayer access period will coincide with the launch of a Christmas-themed Vanguard and Warzone event titled ‘Festive Fervor’.
Kicking off on December 17, it will include “limited-time modes, events, rewards, and features up to the New Year along with plenty of discounts on classic bundles and new holiday-themed offerings”.
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As previously leaked, Krampus is coming to Vanguard and Warzone during the event, as are killer elves.
The main event will task players with completing Festive Fervor challenges for rewards. There will be 13 items up for grabs, including an epic LMG blueprint for completing all six Vanguard or Warzone Pacific challenges.