Consider that it's capabilities are above and beyond what is published to the public. It tracks "missles" . Anything traveling > 100mph can be considered a missle by the software? If it cannot out of the box track small arms, to combine data with some post processing and it would be trivial to run a filter over the infared video feed to identify the very unique heat signature of a firearm discharge. This would be particularly unique because if they used a silencer on the gun, the camera will see more heat than normal gunfire.