Before we started working on SiN: Episodes, one of the things we started working on to properly learn Source was a Source engine version of the original SiN ala Half-Life: Source. A lot of the work was done by Dale Broadbent.
It didn't get very far and barely functions, but there's enough here that some Source engine modders might get a kick out of it.
What is here requires S:E1 to work. Use at your own risk. No warranties are expressed or implied.