@Kusanagi_Z if you want the round style icons and the numbers, you need to find the images somewhere, maybe in the forum there is a post with the files, and if you also want the animation, just download the updated version of the original script.
apparently precaching for that specific map will work.
added:
precacheshader("specialty_electric_cherry_zombie"); precacheshader("minimap_icon_electric_cherry");
to level.script == "zm_tomb"
and it worked after some trial and error.