Played for about an hour last night and I wasn't very happy.
Worst thing for me is the new initial recoil added to LMG's. The M249 was my go-to gun for playing support, but now with this new recoil I was spraying bullets all over the place. I'm already not a very good shot and this just made things that much worse for me.
Also, whatever they did to G to A missile lock on has made Stingers all but useless! If a helicopter is flying low enough you can't lock on to it at all. They might as well include a button to let you throw the thing at the helicopter. That would be more useful.
They were supposed to improve vaulting but I still found myself having to press the vault button multiple times to get over low rails some times. This is so damned annoying.
One good thing they added though is the ability to quit at the end of a round instead of having to wait until the next round starts. That used to drive me nuts.
So far I'm not digging the changes. I'll have to give it more time to really check things out.