I was at Chu Lai in ‘66 & ‘67 with VMFA 314, The Black Knights. I seem to remember VMFA 232 being there at thhhat time. There were no F4’ in Da Nang, only Chu Lai if my memory is correct.
IIRC, VMFA-314 had the center section of revetments at Chu Lai. Memory escapes me who was at the south end. 323 was at the north end. Pilot named Truti I think wrote an outstanding book on his time with 314 if you ever find it.