When updating to the new version of this mod, I can confirm the AI on Interchange with newspawnsystem set to True and both factions will attack Player on sight will now act very weird. Exactly like Khadafi said above, the AI shoot full auto until clip is empty and on a few occasions will just stand there or run off to a "safe place" and when confronted they won't shoot at all. On the other hand, on occasions they try and shoot you from 100's of meters away through vehicles, walls etc. Sounds strange but it happens.
I can't for the life of me understand what could cause the AI's to act like this, I haven't really changed that much in the INI file mainly the armour min-max, weapon min-max levels, mod-quality, how many Scav, PMC's & Raiders are on the map, that's it.
The mod itself is fantastic and gives the game more life but there must be something conflicting somewhere we just need to find it.
EDIT: I will test a bit more with some custom settings in the INI file and update with more information, sorry for being vague.