i have been doing modding for not that long yet people are saying im known in modding

and i thought that i would try doing a dead actor script for my mod attack of titans so i was hoping someone could tell me how to make a script where

if the player kills a creature or npc the quest stage will move from 10 to 20 but i can't find the script on the internet.

scn (myscript)

begin ondeath

if ................

HELP!!!!!!!