Quote from zastels1 minute ago, zastels said: Appropriate credit was given, the OP indicated changes were made, and a link to the license already exists on FPS Banana which someone already demonstrated they could easily find.
Nobody who creates a map on Source has the right to declare NoDerivatives. You do not own the map, Valve does. You own the IP.
No this didn't happen at all. Where did op give credit? screenshot please. Where is the link to the licence on the steam workshop entry? it needs to be on the point on acquisition so people always see it and can't step down a licence. You are clueless about how cc works. The person linking to the map was the original creator!
Valve themselves know that they don't own layouts or custom content. They pay us for original product and don't proceed with anything they can't trace and get approval for. I'm sorry you just don't get any of this at all. And it's very ironic what you are espousing is basically mapping communism.