Complex sentence: The song is noted for its extremely fast tempo and aggressive, sixteenth-note machinegun-like riffs, and a length of more than 8 minutes, which serves to illustrate the lasting duration of war.
Split into simpler sentences: The song is noted for its long duration, extremely fast tempo and aggressive, sixteenth-note machinegun-like riffs. Its length of more than 8 minutes serves to illustrate the lasting duration of war.