Reading your message gave me an idea. When walls are deconstructed nails are ruined. That would definitely reduce the amount of base rape as nail acquisition is most likely the main reason people rape bases.
Just Jack CSF
Ruining nails unless a crowbar is used is a good start; especially if the crowbar takes significantly longer than other means.
Hacksaws should have a soft skill applied, whereby a novice user would ruin the hacksaw by cutting a single chain. Every successful cut could give the layer-life one extra success before ruin, up to a maximum of 5 chains per saw.
Also... Hi guys.