Better question: Why tf is the F-5E 11.3?
AGM-65Bs
the 30mm cannon has 79mm of pen and it gets 4 AGM-65B’s plus speed and turn rate
F-5E isn’t very fast, and certainly not agile with the 30mm pod. It also has some of the worst A2A missiles for its BR.
still compared to most strike aircraft when fully loaded it’s more agile and the 30mm can compensate for the added weight. as for A2A Aim-9J is mid, but it’s better then R-60s if used correctly unless stock.
With the ahistorical removement of the ballistics computer, the F-5E’s 30mm honestly just isn’t worth it.