Other Games Half Life 2 Episode 3 script "Leaked"

So I've just started Half life 2 and shockingly I found that the Half life 2 Episode 3 script got "leaked".
What I mean by "leaked" is that the writer of the Half life series quit valve and released the script for Hald life 2 episode 3. Here is a link to the script. http://www.marclaidlaw.com/epistle-3/ This is kind of a spoiler warning but not as well because this is a game that is never going to be made, and if it was it would not use the same script as this because many people would know what would already happen in it.