Player model (fastzombie) DarkRP HELP ME!

Hi, i am trying to make a sewer monster job, and i need it to be the fastzombie model (without head crab on head) and i cannot find how to use the model for the life of me. also, how can i change the jobs spawn to spawn in the subway on downtown_v4c as well?

Edit the job models in shared.lua

i did that. my model is model/player/fastzombie.mdl and its an error. but yet, if i press C fastzombie is one of my models. i simply just cant find the model path for the fast combie

IIRC its

Yea, i have EXACTLY that, and it sais error for the picture of the job.