In the recent middle east map I played, there was a scout ufo (looking awesome, btw) placed right on top of a wall, the door seemingly intersecting it without fires or damage.
This ufo, aside from being oddly placed, was also not showing its interior AND both myself and the aliens were easily able to shoot and walk through it. it didn't respond to the toggle roof or raise/lower camera buttons.
EDIT: and it seems the games crashes when I try to safe this battle.....