Whenever I change the difficulty settings to "Easy" it goes back to "Medium" when I restart the game. Also, there seems to be a sort of "hover momentum" with the targeting cursor when you jump out of your vehicle. It feels a bit like input delay that would make sense when you're in a hovercraft, but not on foot. Those are my two gripes.
One more thing... I was playing with 1.2 earlier today and the Scion where ejecting out of their crafts and fighting on foot. I never noticed that while playing 1.3. Might just be in head though...