No Crusader gun kills?

If I'm not mistaken, there were only 3-4 kills out of the 19-20 that the
Crusader got in Vietnam. The rest were Sidewinder kills. So like I said
below, this goes against the idea of the gun being critical to a-a success
in Vietnam. Only a fool would argue that it wouldn't have helped to have a
gun on all the F-4s, but it wouldn't have been as revolutionary as some
claim IMO. There were F-4 gun kills too, but again, far fewer than missile
kills (even for the -E). ROE, training, NCTR, and missile reliability were
the more critical factors IMO.

TV