Because many people including myself are having key binding issues. walking backward is on a button it isn't assigned, and the one it is assigned to doesn't work and other issues.
In addition, there are different tabs for on foot and in vehicle controls but they are not independent of each other like they should be so what's the point?
And what PC game that has a multi-player component has ever come out without a type chat option? It's set up where voice is there and important but all of this just screams console port where the finer aspects of keyboard and mouse input were horribly neglected.
Hope these issues get resolved because I'm looking forward to this game and right now the controls are so bad it's entirely unsatisfactory.