Five large terrain pieces to scatter around the junkyard area table. Shipping containers, dumpster, stacked cars, and a generator light tower.
Specially cobbled together stadiums made of scrap and garbage are used to house semi-legal tank fights where bored blue-collar workers bet their beer money on the outcome. Engineering teams build their tanks using whatever they can find and push them into the arena in the hopes of making a little scratch to fund the next fight. Authorities turn a blind eye as the casualty counts tend to be low, no one cares if a junkyard arena ends up with a few extra craters in it, and frankly, the fights are highly entertaining. So, grab your wrench and rivet gun and get to work.