I was the division leader of Halo Reach for a clan called LG360.
I don't think there is a way to perfect Emile's armor because his Security shoulder color is red. However, that color changes with the primary color, so if the primary color of your spartan is steel, then the security shoulder will also be red. Also his knee guards are silver, which means that secondary color would be silver. If you make your primary color steel and your secondary color silver and you are wearing all of Emile's armor, everything will look right except the shoulder. It would be steel when it's supposed to be red.