I love that little gun! -- Engineer on his Combat Mini-Sentry Gun
A weapon that is automatically aimed and fired at targets that are detected by sensors. Commonly associated with the Engineer from Team Fortress 2 due to the Sentry Gun he can build. Enemies that get close to it will get shot and receive a lot of damage.
TF2 Levels and Weaponry
Level 1 = Semi-Automatic Firing Barrel
Level 2 = Dual Rotational Minigun Barrels
Level 3 = Dual Rotational Minigun Barrels + Target Guided Rocket Launch Support System