That will be nice! :) hehe High Protection and Power :)
if you want to test, just put this code in the last line of the "control.lua" of any mod... :) makes all the new walls always indestructible!
script.on_event(defines.events.on_built_entity, function(event)
if event.created_entity.type == "wall" then
event.created_entity.destructible = false
end
end)
:)
