For your looking pleasure, editing, or whatever... Lots of old VMF's
Through the years, I've made a good bunch of zombie survival maps, meant for Garrysmod, though they all use hl2 content only.
Feel free to make edits, or look at, and maybe learn something from these!
You can upload your own version of this if you wish, just make sure to credit me if possible!
Thanks, and enjoy!
You can find all the maps on my steam workshop here: Steamcommunity.com
