Sergeant Zachary "Zach" Deetz, codenamed Detour, works in conjunction with both Reverb and Leadfoot.
Detour and Reverb act as an effective reconnaissance and infiltration team for NEST, capable of silently hovering past critical Decepticon defenses, crippling them from the inside, and escaping before the alarms even sound.
Working with Leadfoot, Detour has learned to appreciate the company of Steeljaw, despite the latter's many flaws. There are advantages to having an intelligent cyber-dog with a powerful bite around, after all.