How do you make Save addons?

Like when I go to the website to get addons i love to get saved one. Like the ones where it says Kill breen or something like that. How do you make them and add them on the website for others to play?

Start a game, do what you want to the map, go in the menu, press save, go into your garrysmod/SAVE folder, right click the one you want to upload, sent to > compressed (zipped) folder, upload to garrysmod.org.

Though in my opinion, uploading save games is stupid.

is this a lua scripting request?