From a single perch near C, I was able to snipe several tanks from clear across the J908 Impact Crater, shoot down a VS Scythe that wandered way too far from home(this was a TR-NC battle), and headshot a heavy on the massive bridge spanning the crater where B is located. Then I shut down a massive rush on A by knocking out their Sunderer, then shelling the survivors including taking down a MAX/Engineer duo by first hitting the engie then nailing the MAX as it tried to run through my teammates - I didn't hit a single friendly and it was a very large shootout. The first time they finally managed to kill me, it took a Sunderer with at least a driver and gunner, two tanks, and at least two Reavers.
Even while trekking back to that gun, I was still kicking ass, taking down a few snipers, then a tank, and some more troopers trying to take C, plus taking out a heavy that tried to rocket my turret from behind.
I had to change position to a different gun once night fell, but from there, I started killing off several infiltrators sniping into the crater just by following their tracers back to them - one of them seemed to have gotten upset and try to hack my turret, only he decloaked right behind me(so I heard it), and I was able to kill him before he killed me.
Put simply, when I get to the controls of a large anti-tank gun, I make things happen.