However the killer is that there is not enough appropriate scenery at FB3 to realistically use them ie there are a load of (large) woods & rocks & some fences, hills & buildings but no lava, ice fields other funky stuff.
To make the scenery rules work I believe you would need to ask everyone to bring along about 8-12 points worth of their own terrain.
I believe Jacky has printed off a load of the terrain items from the main HD website. Should be enough pieces.
I think most players should add "Make 10pts of scenery" to their things-to-with-for-HD lists. Choosing terrain can be almost as important as choosing your army.