Its great you have made animals much more strong and prolific.
Well done on that part.
But having groups of dissimilar animals ( chickens, wolves, raccoons ) spawn IN a camp seems a bit silly.
You also changed them the way they work and they all can now easily move through doors .. thus making doors pretty useless, and trapped in any dug out area and never despawn, thus making it where anyone that has made a sunken house a natural trap to the random spawns in camps.
May I ask WHY?
If this is how zombies will work then you are making a big mistake. You give us doors and yet now make them serve no purpose. This needs to change.