Sweet Half-Life - A long HL1 Mod

This is a pretty lengthy mod.  It's long, it's difficult, and for some reason, easily forgettable in my book, especially after playing hundreds of Half-Life mods through the years.  But this one has new weapons, new enemies and new code.  Normally that is what attracts me to playing new mods - seeing new content, but this mod came out long after HL2 was already out, so I was already burned out on Black Mesa-themed mods.  But I appreciate the effort that went into after all these years later, and it has some funny bits of humor thrown in near the end.

Here is a speed run, where, I'm pretty sure, the guy must have played through the whole game in slow motion and sped it up to normal speed.