The bringers of order and the bringers of disorder fought it out. Both were not willing to give up victory. Harnus and the Aquamarines were consequently slaughtered in the battle, but Buck and the Equestrial Guard were still standing. Borbutz decided it was time to leave the planet, but not without killing Grule and taking his skull first. The Eldeer were too cunning and fast to be beaten in the race, and thus made it past the gate before the other factions could, and sealed them off from the path. Their structures, and their Soul Stone, materialized past the gate and with them.
Outside the barrier, the Equestrial Guard were caught in a fight between rogue Hogs and Discord Marines and were forced to hold their own, while the Eldeer were finally able to do what they came to do.
"I hear the songs of the natural heavens," Toldear stated, "and the music is cacophonous. It is strange, but I find comfort in its dissonance. Righting the chaos of the universal opus is what's given my kind purpose when, by all right, we as a race should have collapsed in upon ourselves." She turned and trotted away from the massacre. "Win or lose... this battle is already my victory... my triumph. It is now fate which decides whether I am there to celebrate that fact or not."
Where does it say the Eldar are canonical victors? I always took the Guard as winning the campaign.
2308817 It's mentioned in Wikipedia. http://en.wikipedia.org/wiki/Winter_Assault#Canonical_Ending
2308830
I checked it over on 40k Wiki and Lexicarnum as well, and unfortunately it seems the Eldar were the victors.
But Gorgutz did get Sturnn's head, which I didn't think he'd stuck on his 'pointy stikk.'
2308893 Eh...
Actually, Gorgutz never got Sturnn's head. He did get Crull's, though, before leaving the planet.
2308900
He did get Sturnn's 'Ead, it says here http://warhammer40k.wikia.com/wiki/Lorn_V
2308930 Hmm...
I'll have to see to that.