Complex sentence: It featuring a rear ramp loading door and was intended to carry light vehicles or artillery pieces, or up to 70 paratroopers, the fuselage was unpressurized which meant the paratroopers had to use oxygen masks.
Split into simpler sentences: It featuring a rear ramp loading door and was intended to carry light vehicles or artillery pieces, or up to 70 paratroopers. The fuselage was unpressurized which meant the paratroopers had to use oxygen masks.