This script/patch is only for MYTHS MOD 3:

https://www.gtainside.com/en/sanandreas/mods/140738-myths-mod-3-the-return-of-the-monsters/

ALL PATCHES OF THE MOD:
https://mythsmod.forumfree.it/?f=64963445

By installing this patch, you won't be able to play with your old save data, but inside the folder you'll find the new save data made by me, you can also find a 100% save data made by me (with a 100% save data you can re-play all the mission of this mod by going to Frank)