In the flavor of all these nascent "Six vs. MC" threads I want something cleared up: which one of them is more of a lone wolf? It seems like a simple answer but it's not.
Spartans II were trained to work alone. Solo. Spartans III were intended to use teamwork, which was a major cause for their being given armor abilities (each ability buttressed the team in a different way).
Now, the Chief prefers to work as a team. He is a natural leader and coordinator, contrary to his training. Noble Six, on the other hand, is a Lone Wolf-type, contrary to his training.
The Chief, contrary to his desires, ended up in a Lone Wolf situation. He was offset by the lack of allies to command after he left Reach and landed on Installation 04. Noble Six, a natural Lone Wolf despite his training, was forced to work in a team situation that didn't really fit him in the events of Reach.
So it's pretty complicated. The question is, Who fights better as a Lone Wolf?
To answer the question, we need to know a lot about what N6 was assigned to before the events of Reach. I think he was fighting innies, but I need more specifics.