Marlow - Convoy, Scum, and Body Count.
This is a four track single put out a few years ago. The bass lines in this are just devastating and will give any good system a proper workout. I guess this might be considered deep proto dub step? It does have a very serious "wub-wub" to it, but don't let the mention of dub step scare you off. If you can't find it anywhere (highly probable) shoot me a pm. Unfortunately Marlow didn't make any other tracks like these as far as I know.
“Art is not a mirror held up to reality, but a hammer with which to shape it.” ― Bertolt Brecht