Using the following config:

{
"Use Permission": false,
"Forget time": 30.0,
"Only animals": false,
"Affect only selected": true,
"Selected entities": [
"scarecrow"
]
}

No animals or NPCs will attack unprovoked players, however Bradley APC (and possibly Attack Heli? although not tested) will attack as per normal. 
Trying to just set it up so Halloween NPC's won't engage without being attacked first.

Line 80 try replacing return false with return true

Magnumwood

Line 80 try replacing return false with return true

Great job! work perfectly!