Well, after applying the above patch, there doesn't seem to be any change. When placing a tank at the exact same point as in the screenshot, it's being fired upon, anyways. If I remember it correctly, this map-bug never occurred, when playing the windows-version of original xcom. At least not in that way, that the aliens were able to fire out of the ufo. But the bug could be used to enter the ufo with a soldier. Are you sure, the mentioned patch fixes these issues?