One oddity I've noticed, and it's probably not something anyone has any idea how to fix, is that when I try to make this and its sequel into a custom mod for Black Mesa (I like things to be organised for some reason), it screws around with some of the scripting, which means it's basically impossible to play through.

It makes the Vortigaunts lightning attack deal no damage and makes them (along with the HECU marines) super easy to kill. Not that this is a bad thing, mind!

More game-breaking, it makes NPCs die instead of playing their scripted parts, preventing progress - most easily notable in spy08_dance, where the guard dies when taking your weapons and the scientist who unlocks the weapons cache dies the second the camera pans to him,.

Shame I can't fix it, I'd have loved to show others how to make this a custom mod with two chapters and that G-Man sleeve replacement all nice and neatly packed into a custom folder.

Anyone have any ideas as to what I'm doing wrong? Don't worry if not, it's hardly essential!