Hi A character with a long range weapon is at the entrance hex of a labyrinth. An enemy passes in a hex whose center connects to the center of the entrance hex along clear edges except for what is in the first hex. Does the limit of the labyrinth blocks sight: 1)Always 2)Never 3)Depending on the real design on the hex.
The doubt comes from a phrase on the master compendium that states that a Los that passes along an edge where one of the two side is cavern is automatically blocked. Also in general the shooter hex is not considered except when the shooter is in a cavern And lastly it seem strange that different labyrinths would have different Los (it 3 is the answer)
Hope is clear....not an easy case to describe Andrea