Well look at it this way . Back in black Ops even the hardest bots were to easy.
One the flipside the bots would automatically aim at you WAY before you even got to a corner. As soon as a pixel of your character showed you were dead.
This game needs that little challenge in bots or it gets boring.
Oh and yes. In this game I got "pixel shot" too.
I agree that the bots need to be challenging, as you said the bots in previous games were a joke.
I'm glad they flank, camp (bastards) and whatnot.
I just think the built-in wall-hack shouldn't be so strong. It takes way from the concept of the game. It's no longer you vs bots. It's you you vs an algorithm that openly states it cheats to win.