First Script is a General script where I can easily set it so any NPC can have this script. All I want to do is make it so when that NPC, or Creature, dies then it will be disabled (Like Summons).
The 2nd Script is basicly like the above one but when it dies, the script will spawn some more enemies via PlaceAtMe on invisible markers then it gets disabled (Like Summons.)
The 3rd Script, once again, same like above but when it dies, the script will add an item to the player's inventory then it gets disabled.
That is all, can anyone help me out? Like give me a few tips on what the commands will be like?

