Termhn, lets see some more pics of that helmet!!!
Can't wait to see finish some boots, seems like the only think missing.
Might want to try and cover up the lettering on your gloves if that will be possible.
Most people have been using paint ball gloves a lot. This pair actually:
http://www.rap4.com/p/007071/sup-grip-armor-paintball-gloves-regular-black-large
http://www.amazon.com/Rap4-Paintbal...d=1378147009&sr=8-8&keywords=paintball+gloves
However, I'm not sure they look Halo 4-ish all that much, but I found these that could maybe work:
http://www.mechanix.com/cg-full-leather
That glove only seems to come in yellow. I'm sure there are gloves out there that might work better.