Yeah I think It looks badass too even with my shitty laptop webcam pic and horrible paint job.
I used The old plastic CSM heavy bolter bits and an imperial guard Autocannon. you cut the handle and hand from the heavy bolter and glue them to the back of the autocannon. I then cut a little blade from sprue and glued it on to the autocannon. I was inspired by an eldar special character to make this guy. The character of course is Maugan Ra, the Harvester of Souls, Phoenix Lord and creator of Dark Reaper Aspect Shrine.
I will put up some more pics of my in progress Autocannon wielding Marines of Chaos when the bits arrive later this week. What do you guys think?