Adds extra forms of defence based on the Command and Conquer series.
.
I suppose I should link it, just in case.
https://mods.factorio.com/mod/Fixed_Tiberium_okta/discussion/5d64b2e8719ec3000bacf9e6
Feel free to use my walls in it, since it's thematically appropriate, but I have too much on my plate.
