I agree that the controls are a little sticky. It is most evident when you are moving from left to right and the controls do not respond quick enough resulting in you falling off a ledge or into the electric frag pools.

I find that the characters are a little stiff in their movements. As a result, you are lead to believe that they may not be pointing at you when, in fact, their crosshairs are so you get fragged thinking they were pointing a few feet away on either side of you. This is more evident in close quarter ...

Similar to UT3, would like a double jump or wall jump considering the shear number of close quarter battles that occur on most maps and game types.