Replace default NPC peds

Is there a native to replace default npc (the one naturally spawning in the city) with other npcs? not modded or downloaded replace… just change a default model name with another

nope… i want change for halloween all the peds around the players to zombies… i have the zmobie npc hash… but i don’t know how to change the model of the NPC

actually i managed to iterate nearby peds and delete them and spawn at their coords a zombie… the thing is… how can i manage the zombie to attack player… or even just walk around? they just stay still even if i use “SetPedAsNoLongerNeeded”