At this time muggy is still a early alpha companion, in trying to work on getting to speak and shoot mugs, but its pretty hard so please wait and it should come but for now he follows and shoots hostile targets and hes a Nuka Cola machine, you can by every Nuka Cola from him, I'm also planning to make him a standalone companion so you wont need DLC for him but at this time you WILL NEED Old World Blues DLC to have this mod.

Install-
Drag and drop the content of the .ZIP File into the \FalloutNewVegas\Data Folder and launch the game and make sure the mod is selected with in the Data files or with in a mod loader such as Nexus Mod Manager or Fallout Mod Manger. go to Goodsprings at he should run up to you and follow