Observed
http://www.youtube.com/watch?v=uSa_ad7XYxk&feature=youtu.be
The player is literally able to run circles around the ai while the ai unsuccessfully tries to rotate to engage. At ranges of 10 metres to 100 metres, the ai will try to engage players moving perpendicular to their line of sight, but continuously shoots behind the player, again, seemingly because he cannot rotate fast enough. At longer ranges (100m+) the ai doesn't even try shooting at players moving perpendicular to it's line of sight because it cannot rotate to track the player fast enough.
Why it is Important
Allows for easy exploitation of the ai in close quarters and far range, resulting in less challenge.
Expected
Ai should be able to turn faster to shoot an enemy at any range no matter what direction they are moving in comparison to the ai's line of sight.