AI capabilities and quality really can't be determined from a screenshot. But from the sound of it, it's comin along great. I like the shadow detection idea.
Do you work with any random probability that maybe the enemy doesn't notice the shadow or are they like super soldiers?
I've played a game once where the enemy knew exactly where you were at all times. As soon as you popped your head around the corner, the enemy popped a bullet in your cranium.
Well, good luck and I must say, this game is coming along nicely.
PS: any chance of you releasing the AI code. I am rather interested in how you accomplished the shadow detection.
If you want fresh underwear in the morning, take it off the night before.