Xmas 3 is the third in a series of collaborative single-player projects, in an episodic format.
Contributors: RyokoTK, Shadowbreaker, Cryos, Axle_Gear, Drictelt, Goran
Apparently this scenario had gone lost. This is what I found on my backup drive. I suspect it is the final version, but I'm not entirely sure.
The creators of this understated it by calling it "Xmas 3", it's an amazingly complete, playable and fun conversion with incredible art, great level design and attention to detail. Everyone should download this.
Any chance of finding the first 2 in the series?
Or "Apotheosis" for that matter, it seems to have disappeared from the internet.