It bears mentioning that these target boxes may be used to train tracking overlays, a.k.a. aim-bots.
Not an accusation, just an observation.
Yeah nah, most fps aim-bots are trying to solve a much simpler problem. In AH you've got to solve the problem for 2 moving objects in 3 axis (each) with 3 potential movement vectors, 3 potential acceleration vectors, plus at a far longer distance where ballistics make a big difference. FPS stuff is usually 2 aixs, 2 movement axis, very little acceleration, usually on a flat plan with very little impact from ballistics (comparatively).
The built in lead compute gunsight already knows your targets information - like a modern radar - so is able to provide a more accurate picture for the calculations. But even then it's not perfect and imho there are things you can do to throw it off.