As the topic reads my friend have had his ficus 6 months. Is this emergancy,?

I don't understand the question, what is supposed to be wrong?

The way he has cut the branches looks dark inside it. Im new aswell so is he

Nothing work at all. Only thing I would do is remove the small leftover stumps with a sharp knob cutter or similar, once spring/summer hits and the plat gets growing strongly. The cuts then heal better eventually