There's that old saw about madness being doing the same thing over and over again and expecting a different result?
Every time I visit battlefields I am caught in the same cycle:
1. I love miniatures.
2. Miniatures are usually played on terrain.
3. Whether the more academic difference between figure height and ground scale or the substantive matter of ground scale versus the terrain we depict on the tabletop, you can either do what most do and point out -- as Doug did during the video -- that the terrain is representational -- or you can tear your hair out, scream mightily, and swear off miniatures forever.
4. I then return to #1.
Start here, although BP2 doesn't state its ground scale -- deliberately -- I believe there's a consensus out there that it's 1'' to 20 yards.
If that be so, our map is well too small. I based it on a scenario I found on-line that seemed to work and I'm reasonably pleased with the outcome. I will not lie, however, and I will be having a look at a significant expansion of its size.
One note as to something I now believe will every piece of me, though, the only way to do hills/slopes/&c., that are of military consequence correctly is to draw them or, if you're truly loony, create a purpose-built model.