No, I didn't, because the F-102, F-101, and F-106 didn't have a gun either, well before the F-4.
For those interested...
Society of Wild Weasels
http://www.wildweasels.org/
Recommended readings...
MAGNUM! THE WILD WEASELS IN DESERT STORM
The Elimination of Iraq’s Air Defence
by Braxton R Eisel and James A Schreiner
First In, Last Out
by Colonel (retired) Edward T. Rock
Ed Rock brings the reader Wild Weasel Stories from more than 40 authors, mostly Wild Weasel pilots and Electronic Warfare Officers (EWOs). These are the true, first person, accounts written by the men whose primary mission was, and is today, to find, attack and destroy enemy Surface to Air Missile (SAM) sites and other radar directed weapons systems. They fly into the enemy heartland through skies filled with MiG fighters, SAMs, and Anti-Aircraft Artillery (AAA). Losses are heavy and courage and heroism are commonplace. The stories also include accounts by a cross section of Wild Weasel associates without whose support the mission could not have been successfully performed including a contractor, Flight Surgeon, Chaplain Maintenance technician, and the wife of a pilot killed in action (KIA). Some are shot down and rescued, others captured or killed, and many successfully complete their missions. All wonder if there will be a tomorrow. The stories take place in peace and war. Many are thrilling accounts of combat action, some are funny, others tragic, all are interesting. It is a moving testament to all Wild Weasels and their families especially to those that paid the ultimate price with courage and honor.
Additional stories/books/references:
http://www.pprune.org/military-aircrew/241882-desert-storm-wild-weasel-tales.html