By now we've all seen the second trailer for Captain America: The Winter Soldier and the response has been highly positive. But one thing that has not been mentioned, is this part of the trailer shown in the gif above. It shows the three helicarriers engaged in some type of aerial battle shooting at each other. It looks to be a handicap match with two helicarriers going up against one.
Since the movie involves Captain America going up against S.H.I.E.L.D., my theory is that Maria Hill might be the one in command of the helicarrier which goes rogue. Not to say that Nick Fury couldn't be in command but if we go by the theory that SHIELD controls the Winter Soldier and tasked him with eliminating Fury and Captain America, it seems unlikely that he would infiltrate a helicarrier and starts to give orders out of the blue. He may even be hiding and only Cap might know he's still alive like we saw in the trailer. The line "How do we know the good guys from the bad guys ?" from The Falcon also seems to support the idea that they have people on their side at this point in the movie.
This will truly, and without a doubt, be the best movie of Phase 2. What do you guys think ?