Walls Using Terrain Buildings File
Two versions, first is V shaped, may look better standalone than the second version:

Second version, I had the idea to make the fortress go right and the barricade go left.
This way cleaner walls can be made. I know that fortresses and barricades have different attributes, but this does allow walls to be built and destroyed without them having to be a unit.

Two versions, first is V shaped, may look better standalone than the second version:
Second version, I had the idea to make the fortress go right and the barricade go left.
This way cleaner walls can be made. I know that fortresses and barricades have different attributes, but this does allow walls to be built and destroyed without them having to be a unit.