The AC-130 has the big 105mm cannon for busting buildings and armor, and 40mm and 30mm guns for vehicles and troop concentrations.
I just pray that none of our compounds are overrun, or any of our troops captured. I hope we didn't spread our forces too thin.
And the idea of a freaking 105mm howitzer firing DOWN from an AIRPLANE never fails to blow my mind. You can run, you'll only die tired.