Question: Do We Even Need Closed-Building Rules?

Some 3D Printed Building Parts, with a Games Workshop™ Space Marine Added For Scale.

In case anyone reading this doesn't also follow my postings on The Back 40K, I've gone and bought a 3D printer. Well, two actually. Though the nicer high-detail one hasn't gotten here yet.

But as I'm getting the hang of printing with the lower-res filament printer, I'm doing what a lot of us probably will be doing a lot of over the next couple of years. Which is printing up some really nice buildings that I bought the 3D files for online. Buildings which, unusually for 40K, have removable roofs, and in some cases even working doors.

Table Setup & Mission Rules: Part 6

After all that talk about Obstacles, Barricades, and Entanglements, here's the rules on when you actually get to use them.