Instructions
Open your browser and navigate to the Garry's Mod website. Click "Downloads." In the search box, type "Classmaker." Pick a classmaker with an interface that you like.
Click the "Download File" button and wait for your computer to finish downloading the add-on.
Double-click on "Garry's Mod," then double-click on "Gamemodes" and "DarkRP." Double-click on "Gamemode."
Find the "Shared.lua" file in this folder and open.
Double-click on "Classmaker" to open. Enter a name for your new class. Type in a model, weapon, maximum people, salary and rights. Click "Generate" to generate the code for your new class.
Copy the code and paste it into the "Shared.lua" document. Save and close the document.
Launch "DarkRP" and select your new class.