After your shot, while reloading, option for a kind of "mind's eye" review of the previous shot (how the shot was aimed, including small movements etc and the bullet slow motion trajectory to here it hit).
Press the "review shot" key and see if you shot high, low or went wide off target and by how much. Most importantly, correlate your actions to the poor result and learn to shoot better.
The sequence could take about 6 seconds of the mandatory 15 to reload, enough for a few seconds of ALT look for targets before the reload is finished.
After 4 weeks playing WoR, it's still a mystery where my bullets go and a surprise when I drop someone anywhere beyond 20 meters!!
PS. could be done also as a simple screenshot at the moment of fire and an x where the bullet hit, saved directly on the HDD. Would prefer the cinematic version, though !