So I was assaulting a downed medium aircraft yesterday. A Ceasan was directly behind the spaceship door, occasionally poking his head out and taking pot-shots at my troops. On my turn, the door was closed and I had an epiphany...shoot the closed door with a stun rocket and see what happens. Sure enough, the stun gas rocket exploded against the closed door, the alien got the full blast of the gas, and down the alien scum went...all behind a closed, solid, air tight, alien alloy, metal door. Is this working as planned or should the stun gas have stayed outside the door and not affected the alien at all?