Well he didn't plan it, he just got out of bed, threw his gear on, grabbed his rifle, and went out to defend his base. It's not too rare, really, this just happened to be caught on camera. Hell, I've sat in a bunker bare-assed naked before ... little bastards decided to mortar us in the middle of my shower. And while I haven't fought in boxers and a t-shirt, I have returned fire with my pants around my ankles ...