I agree with the mouse scroll idea. Everytime I pushing up a few feet and I then have to zoom out and zoom in to regain focus. This is annoying and slows me down, more importantly, it take me out of the experience.
I agree with this, the most frustrating thing so far in my experience is the constant zooming in and zooming out. I like the ability to freely zoom, but it's too cumbersome. Also, while the arrow keys can be used to scroll around, having to jump back and forth across the keyboard for the camera binds and the ability binds is a huge pain.
If your intention really is to make this a tournament level game, the first thing you should do is enable mousescroll, or setup some default controls for scrolling that are closer to the qwer keys so you don't have to move your hand across your desk each time you want to move a bit. The ability to quickly and easily manipulate the camera the way you want is essential to tournament style games. As it stands, it takes several seconds more than it should to readjust your view of the battlefield.