Hello Aternos Team,
can you please add the Mod "Zombie players"?
Link to the mod:https://www.curseforge.com/minecraft/mc-mods/zombie-players
Now at the place of death of the player will be his zombie version, which will try to go home and do what he did during his life (Zombie will be able to open doors and chests). In the settings you can enable random generation of zombies of other players using the list.
This modification requires Coroutil, which you already have in the list of mods.