So I knocked 4 aliens out with stun grenades, and dropped them in the back of my helicopter, along with the body-armor-wearing corpses of all my dead troopers.

When I hit the abandon mission button, with two surviving troopers in the helicopter, it said I killed 5/6 aliens (I did kill one outright), and it said I brought back no items, which makes no sense because I brought back 4 unconscious aliens, one dead alien, and a bunch of dead troopers wearing body armor. I was credited with no alien corpses, no alien captives, and no body armor.

P.S. I have XCE 0.35 installed.