After watching those vids and reading the compendium, I've got that the AI in Brink would be smart, in completing objective and moving across the terrains.
But how about their skills? Often in FPS games, harder AI means a more noticable aimbot, sometimes with higher hp.

Recently, I reinstalled ET:QW as a warm up. However, even with medium AI settings, those AI can rip you apart at a long distance.
They just snap to you and then give you a series of headshots, which is frustrating.
Of course, I am not saying I am a pro, but does anyone know is this aimbot style AI noticable in Brink?

It wasn't when I played the expo demo. But then again I believe those were Rank 1 bots, which aren't exactly a challenge.