Engineer Body Types: Creators vs. Warriors

Was I imaging this, or did the Warrior Engineer neck to shoulder joint look different than the Creator Engineer at the beginning. Maybe this was missed CG coloring issue (it was scale like and black), but when the Engineer wakes and and get out of the cryo, it didn't look like the suit was a suit, but more of a part of him. Its as if we have two species of Engineers: Creators and Warriors. They have different bodies. That might explain why xeno's exo is biomechanical and not just fleshing like the Creator Engineer. Just something I noticed.