This fellow was assembled a little while ago with a bayonet attachment to the bolter, to give a feeling of the older Rogue Trader era marines (and also inspire by the then recently released Forge World Mk.III attachments.
I followed my regular approach to plague marines -- splotches of greens, browns and leathery colours, highlighted in bleached bone with a red bolter frame and rusted attachments. In particular, I'm especially pleased with the rusted appearance that has been achieved on the bayonet attachment. This was created by using a black undercoat followed by a drybrush of boltgun metal. This was over-painted with snakebite leather and drybrushed with bronze mixed with a tint of yellow. Nicely aged and certainly Nurglesque!