Dell Conagher, better known as the Engineer, is one of the main protagonists Of team fortress 2. He is a soft-spoken and amiable Texan with an interest in all things mechanical. He specializes in constructing and maintaining Buildings that provide support to his team, rather than fighting at the front lines. The Engineer's various gadgets include the Sentry Gun (an automated turret that fires at any enemy in range). Hes also the father of the mimi sentry (6 years without updates does something)