Terrain is an important part of any table top game but it is almost always one of the most nebulous and under officiated portions.
There are arguments for and against strict terrain set up rules. In one camp people will argue that strict terrain set up rules are overly cumbersome, add unnecessary complexity, are never fair and would generally not be used as people have different terrain in their collections anyway.
On the flip side, others believe that having strict terrain set up rules help further balance the game, prevent terrain irrelevancy and actually add a dimension of challenge and interest when it comes to addressing the table.
I certainly fall into the second camp, but I have yet to play a game that has terrain set up rules that are balanced or functional, so I’m going to try and come up with my own!