Name this video game from this vague reference

Sometime back somebody posted a link to a video game parody video. The video was some guy’s stream of conscience comments as he makes his way though some incredible FMV out of some video game. Basically the FMV was of someone taking a convoluted monorail ride through this incredibly complex industrial factory. At the time I thought it might be from Half-Life 2. But I just finished playing Half Life 2 and there aren’t any scenes like this in it. Does anybody know what I’m talking about?

Err…probably too obvious, but Half Life 1? That starts with a long train ride through a laboratory, anyways.

In any case you’re probably talking about Zero Punctiation by Yahtzee, so you can look there.

Edit: actually reading your OP more carefully, probably not.

Freeman’s Mind?

Quake 4’s Stroggification factory? Note, the video gets pretty graphic about a minute in. As in, giant saws slicing legs off graphic.

That’s the one! Thanks.