disciple of mephistophelese

[j_spencer93]

I like this class but find some things odd. Why does it gain fire adept when spellcasting does nothing for the class or does that increase the spellcasting level of its later abilities? Second, would it make sense changing all the abilities and spells that mean using hellfire, to actually use the hellfire stated in hellfire warlock?
I am trying to update some of my 3.0 classes so their abilities do as they say.