5. brit and fr LN on same hill plateau - one side is blocked with a terrain (or unit), which blocks LOS.
So is there LOS or is it blocked. Text says No LOS but graphic says LOS. I thought that terrain on both sides of a hex edge means Blocked LOS but in your example both units are on a plateau so does this mean there is LOS?
A line drawn from the centre of the artillery hex to the centre of the Light infantry hex crosses the hill in front of the artillery.
As they are not on the same set of hills that hill hex will block the LOS.