Head: v1 Sci-Fi
Torso: v2 Rock'n'Roll
Arms: Rapid Fire
Waist & Legs: Skystriker
Sniper rifle: PTE
Shotgun: Corps
Knife: various
This custom originated from me trying to make use of some spare parts... but by the time I got something I liked for him, I'd switched every part except the waist and legs, which were my original choice and still look damn good.
The crotch was fully repaired using epoxy putty and paint, and it's still one of my best repair jobs yet despite being my first one ever. I'm really amazed at how well I matched the color of the plastic when it came to repainting it.
He's pretty obviously based on the Sigma Six character, as opposed to the ARAH Thunderclap driver. I like the idea of a vehicle driver who doubles as a sniper. The accessories were picked because they seemed like more realistic versions of the weapons the large Sigma Six toy came with: a high caliber sniper rifle, a shotgun and a knife.
He could still use a trenchcoat, but I haven't found any good ones yet.