Another cristicism about the unfold is that you forgot to before doing the actual unfold. I can tell that you didn't because when I turn off the texture in the Others menu, the 3D model on the left remains dark gray. The result is that the mountain and valley folds are switched around. Because of this, if you attempt to put together this helmet based on this unfold, the helmet will end up with the edge ID numbers inside, making it increasingly more difficult to assemble as you goes along.