Yes, i remember that too.
After the overhaul of the AI i've been testing them quite thoroughly, have them following a path through gates, made an EBE structure with walls stairs and gates through which they had to go in order to get me and it worked perfectly.
They even found me when i had gone under the structure between walls to hide.
Distance was no problem, at a certain distance they would stop shooting but keep chasing and going in my direction as long as i was within the viewrange.
It seems to be a broken AI again now.
@AmenMozes, this is with the Original scripts from Lee
Edit: they did not shoot through walls either when i tested the AI.
Another edit: it really seems that the viewrange does not matter, when the player is at a certain distance from the AI, it starts following its path.
It also seems that it is not tracking the movement of the player but goes in the direction of the spot where the player stood.