Head: Sci-Fi V1 (modified)
Chest: Moto Viper
Everything else: Techno-Viper V1
Arc Vipers are highly specialized Techno-Vipers trained and equipped to perform on-the-spot, heat of battle repairs to vehicles and equipment.
Because of their specialty there is only one for every 20 standard Techno-Vipers. Equipped with high powered plasma cutters and portable welding equipment, with the right materials, an squad of Tecno-Vipers with an attached Arc Viper can repair just about any vehicle problem.