Wilhelm can definitely take care of himself, but even The Enforcer needs help from time to time. Luckily, in Borderlands: The Pre-Sequel, his action skill lets him call in two automated drones Wolf and Saint.
When activated, the robotic pair darts into action. Wolf takes the more aggressive role of laying down fire on enemies. With that support, Wilhelm is free to roam around the battlefield and take out bad guys himself. When he wanders, Wolf will follow his lead and focus fire on the new targets.
Saint stays closer to Wilhelm and replenishes his health, and he also has a protective shield. The makes his skill useful in both offensive and defensive situations.