That's it?
Come onnn. play it JUST for parkour?
Ok, this game is going to be entirely different on the focus of the gameplay. You get like, twice as many points for helping a teammate or doing a team-oriented action as killing a dude like a lone wolf. There are always like 5 or 6 different things you can do, and they are all pretty awesome.
Basically the game is trying to get those cod k/d and point whores to play cooperatively with the team.
Edit:
Holy stuff when I quoted you I thought I read skip.