Id's free Quake III service, Quake Live, has today launched a temporary holiday update. The QL team say:
For two weeks starting December 22nd, enjoy "Silent Night", a holiday-themed remake of the popular arena "Distant Screams" from Team Arena. During this time Santa himself along with his festive helper Vixen, will be playable character models across all game types.
I guess I might see you in there.