First off I'm loving the 1.12 patch, but I've noticed since the stable release zombies aggro insanely easily. Its basically impossible to sneak up on them unless you take off your shoes or crouch walk up to them. Crouch walking is only slightly faster than the zombies move so this becomes very tedious and in my opinion isn't fun.
I think it has to do with the surface you're walking on and what shoes you use. Sneakers are quieter than boots, but since the stable release sneakers seem to give you 3 sound bars on most surfaces when crouch running. Harder zombies is great but I do think that you need to be able to crouch run up behind them without detection. Is this an intended feature? I believe the patch notes said that zombies aggro less easily, which hasn't been my experience in stable. Experimental 1.12 seemed fine to me.
Thanks so much for your work and can't wait to see whats to come in 2021!