Set an immovable barrier
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Tank Traps are placeable items that block a small area and cannot be moved by vehicles. They require a Mod:Toolbox to set up. They are also known as a 'Hedgehog'.
These are best used to block roadways for either an ambush or to slow down a target driving. Be sure to place them in cities or other such choke points near walls or buildings or else they can simply be driven around.