I personally didn't like many aspects of Halo 4. The storyline was very good, but the environments to me seemed... lacking; They just weren't as memorable as past games. I also couldn't stand the immature dialogue in Spartan Ops. All of the Spartan IV's act like immature teenagers, instead of the elite Special Operators that they are. I couldn't get into the Multiplayer at all, it just seemed too random and easy to die. i understand 343 was trying to level the playing field and "make things accessible" but I just didn't like it. One of my favorite aspects of the recent Halo's, Forge, took a step backwards, with no decent Forge World (With Terrain), and botched controls. So overall, I didn't really care for Halo 4. And that sucks.
There is probably a reason why the story opened up with Dr. Halsey being interrogated for her "criminal" activity in kidnapping children and indoctrinating them to become super soldiers. The interrogator could be interested in having Spartans that are good as the Master Chief and the S II. Let's see what happens when Halo 5 comes out.