Yes, moving (cautiously: advatage on perception maybe?) towards an unseen attacker would be good. Also, being able to see vision cones (to the pixel) is a bit unreasonable - there should be some degree of uncertainty about what an NPC can actually see, especially for a large number...and listening as part of percepton seems to be largely ignored. If listening is being used, I haven't really noticed this if so. if you sneak, you seem to be be able to go right behind someone (to shove them of course
provided no vision cone intersects with you or a party member. I have moved my entire pay behind 1 character who just stood there...and I had a fighter wearing plate armour
