What is the reason the JH-7A2 is at the same BR as those fighters that are 10–20 times better than it?
well its quite simple really, it isnt at the same BR as them.
hope that helps :)
I meant in ground battles

but again, thats quite simple really, its still not at the same BR as them
it is 12.3 in grb, the others you mentioned are all 13.0
hope that helps :)
srry is just rage bait
np happy to help :)