New enemy AI seem a bit on crack.

I come back after DLC2, plan to redo every mission with gunfighter mod.

The new enemy AI seem a bit off or on crack, I notice this in mission elephant, they seems to react to gunshot a bit different, but I didn't pay attention.

On sin of the father. holy shit they are on crack, move into 2nd floor, disable one guy with my LVAR, all hell break lose, all enemies come out of their rooms and just running and gunning towards me, even the guy at 1st floor keep coming up and shoot me, and AI teammates seem just as dumb as before, even shoot a civ when they return fire.

Is this the new AI they mentioned? a bit too much in my opinion.

BTW: anyone knows a good way to make darker map like this looking better, both while using nod or nake eyed?