Best Class in MNC?

A question that I really want to figure out, "which class is the best in MNC overall?" In my opinion the Support poses a great threat on the home front and in hostile territory. The Support's shotgun can take out the average enemy in 2 - 3 shots and his firebase can decrease that ever further. While at home he can over heal turrets and hack them to increase the range of them to allow the turret to snipe enemies trying to pull one over on your base. The Gunner, however; given the correct perks, can shred an enemy in 2 seconds and also remove turrets with his mortar launcher in 3 or 4 shots. Meanwhile at home he can decimate enemy bots and pros with his deploy. So, who is the best Support or Gunner?