F-102 in ground attack mode =
1. Launch IR AIM-4s at VC camp fires
2. Use 2.75in FFARs in missile bay door tubes
3. Fit a minigun pod on a TER, hang it on the underwing pylons used normally for fuel tanks.
(3) never advanced beyond a test-fit, but the other two were trialled. According to Air Force Times, 509th FIS destroyed 106 buildings, 16 sampans and one bridge in 199 sorties [source Wings of Fame Vol 17]. It appears from the same source that the pilots were less than convinced that the F-102 was a suitable platform for this role, but the USAF declared that it was!