Everybody including myself complains about griefing, and lack of building. But perhaps the "natural state" the battlefield is inclined to isn't one with lots of buildings. If you think about it: pinpoint and goon don't eventually get nazi-style humongous buildings. And even maps like classic gen and hallway eventually end up as if they were started as flat maps, but never completely flat.
What makes people stop building? And what makes people stop digging? Apparently there a certain point at which they stop.
My first thoughts: people want shelter, free passage, and overview. They will alter the terrain accordingly. After a while building doesn't pay off as much, and they stop building. (What does is it cost?) You could have a system where player blocks are far more stronger, or something, so building would have higher pay-off. Or you could make a map with for instance very good sniper positions which rely on a very weak foundation. (So building is more protecting what you have than creating something new).
My second thought: a map that is interesting and varied is complex. You don't want complex. You don't want the chance to be sniped in the back from 10 different locations. You don't want to choose between 30 different destinations, and still not be sure how you position yourself relative to the enemy. You want a sort of flat field where the enemy walks in the direction of your base, and you walk in the direction of the enemy's base. And you want some cover on the way. And better yet: if you stray a bit from your initial route, you don't have to rethink your tactics or the general direction you're watching out for. In short: even if people had super building powers, they'd still be inclined to do what is done today. In this case there would be little you could do alter the way people use the environment.
These are of course generalizations. I don't think it is a very pretty picture I describe, but can you relate? Any other thoughts/considerations? I kind of have this ideal picture where people build such complex structures that they become awesome 3D mazes. That's not happening
* If you don't know: industry has lots of buildings and structures. Island is pretty flat.












