Head: Red Spot (SpyTroops v. 1)
Torso, upper arms and legs: modified Tele-Viper (VvV v. 4)
Lower arms: modified Duke (SpyTroops v. 12)

Helmet: modified Cobra Commander helmet from SpyTroops Shipwreck
Headphone/radio accessory: Chap Mei
Backpack: Mainframe (ARAH v. 1)
Pistol: Barrel Roll (DTC v. 2)
Screwdriver: The CORPS!
Laptop: BBI

I'd never had much respect for Mainframe as a character, I admit. My first couple of customs of him were LBCs to the extreme and were just used to represent a character I anticipated would be in the background of a lot of dios.

But when I got to scripting further in advance for my stories, I realized that Mainframe would have a key role in my Joeverse eventually and, as such, needed a custom that would appeal to the character's fans and help make him more interesting to me.

This design is based, in part, on DavAnthony's Mainframe custom and, in part, on input from a buddy of mine who was a tech in the service.