New Walls

[Elthedark]

Anyone know if we are supposed to be able to upgrade the wall levels from 2 to 3 and 4 or do we have to rebuild them completely?

[MrFaust]

From what I have found you have to dismantle the old and build the new, before I realized the Mark V walls couldn't be properly build by the NPCs, I decided I would build the new walls around the old and dismantle them afterwards. There does not appear to be an option to upgrade already existing walls.

[Hatsune_Neko]

there isn't and might not be a option for it, for each wall type gets bigger, taking up more space.