Since the Mitsubishi F3 Air Superiority Interceptor is to be the JASDF’s Primary Air Superiority Fighter, it will considerable load: It will be armed with 20 MM JM61A1 Cannon, AIM-9 sidewinders, AIM-7 Sparrows, Mitsubishi AAM-3s, Mitsubishi AAM-4, ASM-1, ASM-2, various free falling bombs with GCS-1 IIR seeker heads, JDASm, perhaps even J/AAQ-2 FLIRs.
Avionics wise, it will have something similar to the AN/APG-77 radar, AN/AAR-56 maws, AN/ALR-94 rwr, as well as something similar to the MJU-40 flares.
Ordinance wise, it will have greater capacity than the F-15Js....