Borderlands 2's third Headhunter series add-on, titled "How Marcus Saved Mercenary Day," will hit Xbox Live, the PlayStation Network and PC and Mac platforms via Steam on December 17, publisher 2K announced this week.

How Marcus Saved Mercenary Day is a Christmas-themed expansion that takes the vault hunters to the wintry village of Gingerton in search of a missing weapons cache. Battling freezing temperatures and obnoxious holiday cheer, the hunters fight toward a climactic battle with the Abominable Mister Tinder Snowflake, a killer snowman with a posse. Upon completing the mission, players will receive an equippable snowman head for their vault hunter, along with a number of unlockable expressions and character skins.

Gearbox's latest add-on is the third in a string of holiday-themed releases for Borderlands 2, following up on recent expansions celebrating Thanksgiving and Halloween. How Marcus Saved Mercenary Day will be priced at $2.99 when it launches next week.

This article was originally published on Joystiq.