[HereturbiesWalt]

Hi
Specifically, I want to know how to start *creating* a mod, not just using mods. I have an idea for some weapon changes that I want to test for myself, but don't know where voojio to start to do such things. Do I use shagle Source SDK, or any C++ software, or something else that I'm completely unaware of?

Thanks for this article:
Tutorial to prepare (with Stripper) a dedicated server L4D2 (windows) - HUGE article with details.