[person135]

I'll try it when I have the time.

I haven't really seen them shoot through walls that much, but then again, I've only played with them on de_herrenberg a little so far.

Maybe you could reduce their hearing?

Also, here's an idea:
To make them not look at the walls, only make them look at waypoints. My bots tend to cling close to the wall and stare at it while ducking and walking. If they have to look at waypoints, then they can't look that closely at the wall because there won't be any waypoints on the wall.