Jan Axel played live with them in USA I think and at some Festivals. During a festival in Milan he had the injury so he couldn't play the european tour starting in september. Before that he played with Dimmu.
Oh okay, makes sense. I wasn't too sure since I didn't really hear of HH working with Dimmu on the new album until after its release and after I heard about the injury (I'm slow at getting news, haha).