1) Frozen Landscape
What a scary map, by night!
Indeed, playing it at night let me see an odd reflection of the "fire light" on the UFO wreckage.
2) (I don't remember the map's name, and I didn't think about looking at the log in due time)
There's a train station, a small tunnel, indoors and outdoors market, one house and pavements.
Is this an engine bug, or a map element to be corrected?
The door was displayed as being active whereas this soldier Al Ghadban is at a lesser level, and quite afar from it. I noticed the effect when the soldier was hiding on the stairs' side, and it persisted when I moved him (until second screenshot position). The effect didn't happen for any other soldier.
I don't remember if this magic soldier was the one who opened the door in first place.
3) Mart or Supermarket
(map with large, non playable towers all around)
Perhaps, it's needed so that the aliens aren't trapped, but one door is not active (whereas the other one a few squares to the left is active).