try :-
https://www.nexusmods.com/stateofdecay2/mods/There are a few mods already 1 is you can customise characters to what you want, though I havent tried it. (You want the 4th one in the list) Also there is a save game mod so you have a back up of a save game. I use it in case of a bug, I.E glitch in a wall and get stuck, a mission isnt working properly & various other problems. This mod works a treat :)