What bothers me about these discussions is the falsehood that you're going to get in serious trouble for firing a weapon that costs money. Listen, it's war. If you're loaded with something and the ROE is met you're going to fire that weapon after that hot call. 9 line brief's exist for a reason. No one cares that it took you more than one shot. Maybe you'll debrief and it'll end up on your sheet but no one's going to a federal prison for firing two Hellfire's instead of one. Mission first. Always. Working in a squadron and on a carrier I never heard or saw a pilot go before the skipper because he launched more than some imagined "allotment" of weapons. There's a huge difference between fog of war and variables that extend a mission or cut it short versus a "Class A/B/C" mishap.
In the Navy the Ault Report that spurred the creation of the Top Gun program was literally based off the fact that it on average took 10 missile shots to down 1 enemy. Those pilots weren't getting in trouble for that - but it was a training deficiency that got addressed.