Help me please!

Hey guys i have download from gamebanana this soldiers ( and now i would to modificate helmets and add to their body a parachute or radio ragdolls from Resistance and liberation. It’s possible?!? How can i do for do it?!? Thanks to everyone!!!

(User was banned for this post ("undescriptive thread title. Make one thread, not three" - postal))

use 3dsmax. or some modeling program