I SAW Cave Divers For no reason:
OR just use: "prop = sim.partProperty; for i in sim.parts() do if prop(i,'type') == tpt.el.uran.id then prop(i,'type',tpt.el.plut.id); elseif prop(i,'type') == tpt.el.tnt.id then prop(i,'type',tpt.el.dmg.id); elseif prop(i,'type') == tpt.el.anar.id then prop(i,'type',tpt.el.polo.id) end end;"
3 commands to destroy the mine: "!set type uran plut", "!set type TNT dmg", and "set type anar polo"
it is still inefficient with human hands
concrete and anti-air allows for easily collapsible mines
i put vent in the uranium to simulate volcanic activity and it melted everything after a while