thats really good that helmet thats as closest iv seen to the proper helmet from the film spot on :) i had work experience with the prop compeny that the judge dredd stuff it was epic but a lass i was not able to bring one home with me
if anyone is interested i have clayton carmine armour for sale on ebay size M ideal for cosplay and panitball http://www.ebay.co.uk/itm/clayton-carmines-gears-of-war-armour-with-custome-shoulder-bells-/150845945015?pt=UK_ToysGames_ActionFigures_ActionFigures_JN&hash=item231f1e74b7#ht_500wt_949
if they did i would of thort it would be diffacult to play cuz im would u turn cuz u cant turn yr body and look at the screen it would be a bit uncunfey
get a block of wood and some sand paper and some pics of the helmet u are making the using your pictures mark out the details with a pencil and the use the sand paper with the wooden block if u have a dremel that will come in handy too and also get some wet and dry sand paper it black that will...