This is a support built. It's not going to be tanky or provide DPS. This is for crowd control and keep enemies busy to give those in your team with DPS to do some damage. It's good to pair with a Reclaimer to keep you alive since you will be "squishy" and not able take a lot of damage. The MDR pairs well because of it's talent, Determined to bring back skills faster and talented to give a damage boost to your Turrent and Air Burst with every kill. Place the Turret strategically, elevated and at chokes point where it can achieve maximum reach in all directions. Set the turret down, Spam Air burst and your Incendiary and Smoke grenades and get some kills to proc your weapon talents. Enjoy.