I impulse bought a resin multipart drill vehicle on ebay a few years ago and was intending it to be Orked. However it was a bit too small for Orks in the end, so i decided that it was ideal for a scruffy bunch of industrial saboteurs who can enter the battlefield from the sewers. This was mostly about practice making the metal bits look old and worn, and I was reasonably pleased with the result. The Imperium of Many will emerge from underground to strike at its enemies!