I realize I did this back in December and never posted it here. I saw Shinigami had the same idea too, who wouldn't, the Grim Knight figure from McFarlane is basically perfect for this custom.

My version is done in matte and gloss black alternating for the body suit, then I went with mostly olive drab for the straps and pouches. I tried to create what contrast I could to give him an interesting look. The head is a CW-verse Deathstroke head sculpt, I'm honestly not sure which one as there was like 7 different CW Deathstroke figures and this one was just in my parts box. I added the visor, trimmed some pouches, refitted some on his arm, and de-batted some of his accessories.

I hope you enjoyed looking at my version.