I have a few suggestions for your Zs server, Snivy.
Fast zombie/headcrabs damage should be lowered to 5, perhaps headcrabs could be slowed down a little too.
I've also heard people saying that chems run too fast and I think that humans should out run or run at the same speed as chems.
You could also make the speeds/damage and such more similar to those who were in the last version of Zs and see how that would change the gameplay. Right now I am not 100% sure if those changes would improve or make the balance/gameplay worse.
and I'm expecting to make a LOT of changes in the following weeks.
If you're thinking about modifying some stuff I think you should make a new thread for people to post their ideas only for Zs.