Triggered spawns?

[Jegethy]

I've noticed that when exploring POIs, sometimes zombies will detect me even when I'm making literally zero noise (achieved through a custom mod).

These zombies always tend to break out of cupboards or fall from the ceiling, which has lead me to believe that A18 added some triggered spawns, or area triggers, to POIs.

Does anyone know where and how I can change that? I don't like that behaviour and I'd like to remove it.

 

[Jegethy]

I've been tinkering with settings for the past few days and I can't seem to change/remove this annoying feature. I can only assume that it's not set by the XML files.