For anyone wondering about FOV:
I've added a Hipfire (Config File FOV) aim to the game when you have location config file selected.
Use this to calculate the correct FOV to use in the config file. Just change the FOV Type to the kind you want to convert from, and check the output for the correct config value.
I'll update all config file calculations with this at a later point as it needs some code update to work properly with scopes and ADS.