I did get to see zombie civs but how do they work? because i also see soldiers wo shoot and only want zombies, and how can i make that there are a lot of them?

If the city is owned by rebels, the civs re-move in. If they're owned by occupant/invader, zombies spawn instead of civs

You can up them by either using the uncapped zombie spawning parameter, or upping the civs per town parameter

thx

Is there a way for both the town civilian and civilian setting maximum to override from 30 to 100?

The zombies horde just need to be bigger more... even with uncapped zombie spawning parameter is on. We just see occupants. Zombies are pretty rare...

You will soon feel the issues of having that many AI regardless of how good your server is

ill take the risk, but is there a setting to override it though?

Im struggling with that, im trying to make the zombies and the goverment to fight but i cant, they are friendly with eachother and i dont know how to make them hostile. Appart from that, yes i think your garrison troups should shoot the z like your squad.