In conclusion the online is simply rubbish. There have been games before that have separated there single player and their online to show the lack to relevance, an example being Metal Gear Solid 4: Gun's of the Patriots that actually gave it's online function a separate name. EA should have done the same or similar and found a way to separate the two more, but no matter what steps are taken the simple fact is that the online play is worlds apart from the single player.
It is common sense that the ability to slide and dip around corners was removed but everything about the game is entirely different. The online is not only different, it's badly done and almost unplayable on a bigger map unless you're willing to sit in a corner with a sniper rifle and pick off passing unsuspecting players.