Zombie on a place on the map, a little script ...a idea?

Hello to all, here, I was wondering if someone could give me a few lines of code in esx … to make appear zombies who attack you in this part of map, I want to create a treasure hunt … thank you for 'advance to those who will have the heart on the hand ps .I am only 12 years old I still learn the .lua …

Map:

and model pnj Name: Zombie01
Hash: -1404353274 in https://wiki.■■■■■■■■■■■/index.php?title=Peds