Im making a machinima in Halo 3 using 3D model and animations, and well I started my animation with some monster and spartans, the monsters look great but the spartan has a weak graphical look it doesnt looks like an H3 spartan, I got the diffuse and bump map, the visor needs more graphic work but I have other materials like...

Material_A
Material_B
Material_R
CC-Total-Edited
CC-Primary
CC-Secondary

Those look like specular maps, but I tried adding the bitmaps in the specular, refraction, reflection and the looking is not getting better, where should I add these bitmaps? Or what should I do to make the spartan look like is in game? The scene alredy has camera tracking, lights, etc... I only need to improve the spartan

Thanks