I just discovered that units with the loftemp 1 can not be hit with melee weapons from diagonally behind. They can be hit from all other sides, even from diagonally frontal (with decreased chances? have to test more). Not sure if this is of use for someone, but it is a curious thing.
It reminded me of the loftemp 85 thing (used for some stealth armor mods) that can't be hit/seen at certain angles.
Also: Loftemp 78 is in that way the opposite of loftemp 85, you can't be hit from the other angles