The biggest complain I have with the game is that it's way too fast paced to feel like a true Battlefield. It literally feels like it tries to be like COD, maybe to attract more of the unhappy COD players, but it also loses it's spirit and character of a true Battlefield game. I played a bit of Bf4 today when the servers for 6 were down and even that one felt slower than this.
Feels like the game is COD with some elements form older BF titles to appease to the Bf fans...
Also, too much is happening on the screen at once and the maps although beautiful, are a bit too small and compacted to have that Battlefield feel (but maybe those are just the smaller maps).