Mod Zombification 100
This modification gives you complete control over the transformation of villagers into zombies, regardless of the game difficulty level. You can set the probability percentage of turning an ordinary villager into a zombie, as well as determine the chance that a zombified villager will be able to pick up loot and remain permanently in the world.
By default, all parameters are set to 100%, but you can easily change them through the configuration file according to your needs and gameplay balance.