I did earlier this year, basically it's a tricky thing since you ideally need to get the chest apart first. basically fisrt you need to take the lightpiping ut first then the screw that holds the rest of the head together should be visable to take out. Note that on the RTS version the screw has been done away with and the lightpiping just eeds to come out in order to take the rest apart easily.
I was never able to get the light piping out. It's in there too tight and no room to pry on it. I wish someone would do a video tutorial of how to get it apart the easiest way.
