Although I can't find any documentation for WWII fighters, I know there had to be some sort of G limit for external bombs and rockets loaded on aircraft. For example, I can put 2X500 on the wings, a 500 on the center pylon, and 10 rockets on a P-47. I go into a dive exceeding 400 IAS, drop the two wing bombs, and perform a 6-G pullout and the center bomb and rockets (not to mention the attach points) suffer no ill effects.
I can't imagine the pylons (or even the wings) were designed to withstand such forces. At that load factor, the 500 lb bomb weighs 3,000 lbs and all 10 rockets weigh over 600 lbs individually. I would think there would be some sort of damage, at a minimum, to the pylons and rocket stubs. I know those components are not currently a part of the damage model, but perhaps in some update in the future they could be?