I´m voting for this idea. If I´m getting this right, it would show us some kind of rating - How many shots people need from each gun to kill enemie.
example: I have a Spyder, and kill the enemy with 12 bullets, second 34 and third enemy bullet 1. Counting the number of missiles (47) and divide the result of 3 - which is about 16 bullets to 1 enemy. That gives me a 6.25% success rate for Spyder. Is that what we are talking about??