Not sure what the requirements for Gunfighter are, if they differ from what is written on the medal, but you can fire off over 100 shots into the wild blue yonder and no medal awarded.
It's very boring to do and I don't know why this should even be a medal, especially if it won't even award for doing that tedium.
Does every shot have to hit something? Do you have to win the stage after having fired off shots or it doesn't count them? What are the *exact* requirements for obtaining this? Or is the game just bugged and doesn't award it?