File placeing please help.

Were do I put this?

good question, I have been trying to figure out where to put custom NPC’s for well over a week now, and no Posts are helpful, especialy since flamers just start being dicks when someone asks a question around here. Sorry I couldnt be of any actual help here.
I do have one suggestion, try putting it in the garrysmod/garrysmod/addons folder. I dont know if it will work or not.

My question exactly. I had the exact same question when I downloaded the Masterchief NPC. Needless to say, I have never seen it except in pics.