To be fair, that game squence was the only real thing I had a problem with. I would have much rather fought the thing in a more traditional battle or just watched the scene. Though I can understand why they did it, to make the user feel more involved, I would have rather had to experience a fight for that reward first.
Are you talking about whatever CoD had the ending where you throw the knife in the dudes eye? If so, I know what you mean. I'm a huge Halo fan, but that CoD ending was the first thing I thought of at the end of Halo 4.