I understand the mechanic. I'm just saying it's working extremely poor. Half the time I get spotted by a Screamer that spawns so close to me and screams right away, that I don't have time to respond. While looking for the Screamer, I hear Zombie Dogs coming in. Also due to my current weapons, it's really hard to kill them fast from a distance, and running in with a shotgun, will kill the Screamer, but there is no way I will get out of there, making it even harder to get my bag.
I have multiple exits, my exit is on top of the building, and I have multiple ways to get on the roof, that's not the problem. In the end I just can't deal with the situation before dying, and I have no way to kill it from a distance, leaving me with very few realistic options.
Like have been confirmed, the way screamers work now, is not how the developers wanted it, so I'm not going to do some massive changes for something that will be sorted in the next patch.