What probably happened:
1. His platoon Sgt did not turn in his equipment; dividing it among the platoon.
2. His platoon Sgt actually DID turn in the equipment, but;
a. the paperwork got lost, or screwed up.
b. a corrupt supply sergeant “lost” the paperwork to forward some larcenous plan of his own.
My guess is 2b. I had a similar scam worked on me, involving being charged for a month’s leave I hadn’t taken.
DG
He left the battlefield in his gear and hit the ramp at Ramstein wearing a hospital gown. I'm pretty sure he didn't make a stop at FEDEX to ship his gear home.