Originally Posted by kev13dd
No helmet.... but he can go outside and have oxgen... right...
Well if you look in the mirror or any of the cut scenes you don't see him with a helmet on like the other marines do you? Most of the possessed marines have face masks on and some of the other marines have helmets on that seem to be solid with no eye slits, much like the multiplayer models. Perhaps he is holding his breath like Arnold in Total Recall? :P