The zombies can enter in structures in Pavlovo's millitary base while playing on an stable server.
Zombies get in and out of this building easily, because. during my unconsciousness, I heard the sound of footsteps moving away. When I came to my senses, there was no one around.
I have tried this several times and zombies found me every time
I attach a video:
https://www.youtube.com/watch?v=TG6qh6XzxIw