I've been hunting all day for this sucker and can't seem to find it - it's a remix of a song called VargTimmen by a group called Hedningarna, only with the added accompaniment of awesome.

It's fairly easy to find the source music, but the remix used in this trailer (http://www.youtube.com/watch?v=sac12r9Z5mA) is proving tough to find. If anyone's got it, please post it up. Thanks!