I've chosen in Ufoextender the option Psionic Line of Fire. Still, there are units, like octs, who can affect the minds of x-com operatives through the walls of the tower of lvl 2 artifact missions. They don't see me. There are also units, looking like a cloud, that can attack mentally operatives through the walls of Triton even they don't not see them after 1 st turn. How can they attack operatives if the last ones even did not go out from the Triton ship for a second.
Thank for attention.