I wanted to intimidate my opponents more and the recent Made to Order Assassin was an ideal choice. As with all Jes Goodwin's sculpts, he was a joy to paint. Plus he reminds me of Joe Musashi, the hero from the Shiobi series of video games.
I've seen some lovely alternative colours for Assassins, but I chose to stick to the traditional black as an homage to Rogue Trader IP. I used the same technique as I employed on my Death Company - paint black over metal, zenith spray grey, then dump a wash of black ink mixed with black paint over the top. The wash settles in the recesses and knocks the grey back, just leaving it on the raised surfaces, to which you add a few highlights. Boom. There is a vent on top of his backpack which you can just see in the boxout. I highlighted this up with blues and that worked well to separate the element from the rest of the zentai suit (sorry - "synskin").
I also got both the Inquisitor and Demonhunter in Terminator armour to swell the ranks of my retro-clone Imperial agents. They are nowhere near the front of my painting queue, but shuffling around at the back, trying not to stand out while noting down people's names and nodding in a totally un-threatening manner.