Walls

How can I make walls like this?

I realize that the top bit is a barrel, but what is that bottom one? And, how can I scale the barrels non-uniformly like that? When I try to scale a barrel, only the X axis field is active and the other two fields just follow it. I've never done terrain before so I'm relatively clueless here.

first off the barrels;
you need to make them a doodad and not a destructable. to do this, copy a doodad such as the cattil and set the model file to barrel (under the destructibl;es sub section- i think its the second one down thats the upright barrel), this is because destructibles can only have the x y and z value at the same number, but propes and enviromnetal doodads dont behave like this, then you can set them to have high z values, im fairly sure the walls at the base are just the dungeon walls, unlike the barrels, you cant make non destrucatble doodads out of these (if you try you get the checkered box) so you just make these have no pathing and place as normal
hope this helps

Thanks, got it now.