Easier said than done.
Yeah I was busy with that until my game crashed somehow everytime I started it, I mean I didn't do anything wrong, but it happened when all peds became one of them. I guess that was where I went wrong, but if I undo that change the game still crashes.
Now my game crashes too with normal character.xtbl -__-
Besides, they don't spawn if I flag them as zombies, if I use no flag they keep their normal voices and the "zombie_voice_only" flag is vestigial, it does completely nothing.
Then I need to reskin every ped yet, and working with .str2_pc and .asm_pc is beyond my skills, and I have 0 time to learn that skill.
I don't promise I'll do it again, but if I will, there won't be any normal ped left, only gangs, cops and zombies.