Hey, I'm a long time lurker, long time member of the 405th infantry. (405th.com)
Figured I'd post up my pepakura file, it's a mashup of the front of my helmet, and the back of dung0beetles (modified to fit). it has a separated faceplate, so you can attach the pieces with (binder clips?) and resin them, then take apart and work on them individually. I think we can both be proud of this helmet, and I come bearing bad*** pics of it!
-Dung0beetle, for giving permission to mod and post his piece.
-dubean33 (405th), for unfolding so smoothly!
-timecon (405th), for the first unfold
-Dancin_Fool (405th), for the bust for the helmet to sit on
As a bust (made to mimic Sideshow 1:1 bust)
Pepakura file can be found HERE
I'll be around to answer any questions. Thanks for looking, and good luck!