"It's not even called the GRD Helmet"
Well to be frankly honest with you Kira Onime, the BoB's don't do ANYTHING related to the helmet.. we have never EVER seen it in the armory section to know what it would have been called (That picture was the worst lie anyone could have pulled -.-) and it is most definately unobtainable.
Everyone thats anyone has heard of this helmet and collectively when mentioned as "GRD" people know what your talking about, would you rather us say "Hey do those dolls with that helmet do anything?" ..."What helmet?"..."You know! THAT helmet"
My consensus we have little more than 1 year until Halo: 4 is released, having said that if there was any ammount of collective secrets to unlock this armor then it would be pointless to have it hidden in the first place with so little life expectancy for reach.
Had my hopes up for the new armor, would've been nice but my life will go on. :)