I’m fairly new to Ghosting Mod and Source Unpack, so I can’t tell which one is causing the freezing at the very beginning of the game. After the G-Man cut scene ends, the screen flashes white, and normally the game would start in the train, but for me it just freezes and I have to restart my computer.
It seemed to have worked fine prior to today, so I don’t know why it crashes. In core Half Life 2, this map seems to load just fine. I’m using the latest versions of Source Unpack.