Five cameras used (Canon EOS 60D, 2x Canon XA20, pro-JVC cam with Canon EOS lens (70-200mm), GoPro Hero2) in a tiny rehearsal room in Göteborg.
Tight timeschedule that got crushed by the electrical company that accidentally dug off some cables and caused a three hour electrical black out.
Some blood was spilled, but a small price to pay for the art of metal.
Light postproduction, most effects done on site with lights.