As for a good template, try Da Frontline Trooper's. He has made a lot of Youtube videos of his weapons and he publishes his blueprints on his facebook. That's the best I can do for you You can use the measurements he has and it's all pretty good. You can enlarge it and print it out poster style and cut out the rough shapes and use it as a template. Unfortunately the blueprint he publishes is not a 1:1 ratio. Hope that helps out some.Sure thing I'll check it out, and thanks for the advice, I think I'll mold or pep my helmet and use foam for the rest then.
Thanks again.
Also, I forgot to ask, where can one find the lightrifle template you're using?
You can also check out this thread http://www.405th.com/showthread.php/39765-Halo-4-Weapon-Blueprints