i spent all year trying to find the perfect song for this, in the end when i heard that requiem for a dream song on the sunshine soundtrack i was like - THATS IT! but it wasnt long enough, and again i was watching 300 and that scene in the 2nd battle was absolutly mesmorised by the guitar so i added that, and remixed it so it was longer and blended it with the requiem for a dream song at the start and towards the end