Every instrumented firing range reduces to the same problem twice, at two different scales: capture an event precisely enough in time and space that a human can review it afterward and trust the record.
Indoors, the loop is projector to screen to infrared sensing to instructor console. The infrared sensing device tracks the laser dot from every weapon on the firing point continuously, and the instant a trigger breaks, it hands trigger-point coordinates to the console, synced against recoil and firing position (lying, kneeling, standing). Twelve pre-built training modules run from basic grouping analysis to judgemental video scenarios the instructor can build from their own footage.
In the field, the loop is transmitter to harness to radio net to control station. Laser transmitters under 500 g carry both an IR engagement laser and a visible zeroing laser, programmable across 100-800 m engagement bands depending on weapon class. Sensor harnesses register hits through 360 degrees on body and helmet, and a 2 km-radius data radio net -- rechargeable, 8 hours' endurance -- pushes events to a control station tracking all participants across up to 4x4 km in near-real time.
Both architectures converge on the same output: a two-way record of every engagement, replayable at any speed, with tamper events logged to the second. That shared after-action review layer is arguably the harder engineering problem of the two -- sensing an event is straightforward compared to guaranteeing the record of it is trustworthy enough for an instructor to make a training decision from.
Full writeup: https://neometrixgroup.com/products/firing-training-simulators
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