The AMV-7 has only few shots of ammo compared to the competitors, which is realistic.
However, the AI handling of this Vehicles weapons is distinctly unrealistic. Instead of using it as intended, single shot "sniping" against individual targets or two to three round bursts, with waiting for BDA (meaning watching the rounds impact on target and then adjusting), the AI simply fires the autocannon constantly at a single target, no matter the range, at full auto until all rounds are expended.
Additionally, especially against infantry targets, the AMV-7 is often very apt to miss its targets and have little more effect than an infantryman with its cannon, ie, it kills two or three targets and then runs out of ammo.
This behaviour should be adressed.