4th Edition Rules - comment now or forever shut yer trap!

[plloyd1010]

Following your idea on elevation lines: I've never had a problem with the 2 elevation line rule, but it was hard to visualize initially. The one elevation line never really seemed to come up.

I did like your examples. Our house rules for a presumed crest would also prevent A from seeing B, but could see C. Our rule says:

The LOS between units of different elevations is blocked if the higher unit is behind the crest of the hill. If the highest unit has a higher elevation line behind it, which is also on the same hill, the units are in LOS of each other.

If the highest unit does not have a higher elevation, of the same hill, behind it, extend the sighting line for LOS check behind the higher unit, mirroring the LOS check to the target. If the higher unit has more hexes at its elevation in front than there are behind it, LOS is blocked between the units. If the higher unit has the same number or fewer, hexes at its elevation in front of it than there behind, LOS is not blocked.

Since A looking towards B has 2 40-meter hexes in front of it, and only one behind, it is behind the crest. If A looks toward C it has one hex in front and one behind, therefore it can see C (with our rules). A looking at K is questionable. The LOS clips the corner of the hex. It becomes an example of why image based or hex based blockage needs to be decided.

We would give the defensive modifier for N, when fired on by M. We apply the fire modifier if fired upon by equal or lower elevation.

Our simplified assumption for our rules was that slopes are fairly consistent up to a central high point/ridge. You can always see down the slope when on the facing side of a hill. What we did not address was observing units on hills from higher elevations. (Mostly it didn't seem to happen beyond 3 hexes.)