P-51's very rarely mounted both bombs and rockets, but we can do that in here.
I see almost no difference between giving a rare load-out combination and a rare loadout. I mean either way you look at it, its still doing something that was rarely done in real life.
Uhh the P-51's ordnance loadout was NOT rare, or a field modification kit - which makes it legit to be added in game.
A C202/205 was capable of carrying ordnance on its wings along with a drop tanks, however the drop tanks were used quite more then the bomb option which I have not found a single photo of any C202s/205s carrying ordnance.
I have 6 photos of a C.205 and G.55 carrying drop tanks, mostly recon versions since they were defending and didn't need drop tanks, my argument is the drop tanks were readily available they simply were not needed which
says they were not field modification kits, however just because they were not used daily doesn't mean it didn't exist or was used.
The Bombs I would certainly say No too, but the Drop Tanks for example were used in North Africa.