[Murph]

HSFX includes maps of Korea and various F86s and MIGs. The exhaust from the MIG is very hard to see- I understand that this is historically correct. I don't know about the labels.
The "Histomod" is not online compatible with HSFX, so if you want to fly online with friends or squadron mates who use HSFX, you won't be able to if you install Histomod.