To get this video more watchable, I had to increase the volume of commentary while decreasing all other voice. Since Half-Life game does not allow it in settings menu, I had to mess with files, extracting them with gcfscape, processing the total of 2840 files, and then putting them in 'Half-Life 2\episodic\custom\my\sound' folder to prioritize over original audio files.
To make so many files louder and others more quiet I was using batch processing in Adobe Audition.
Recorded with Nvidia GeForce Experiece, done some cutting with Avidemux, because it can cut video without recoding.
So, I'm prioritizing commentary over story here. If you want story—see my walkthrough for this series. https://www.youtube.com/playlist?list=PLvnmVmt0dvodOjMCroShbFSfb-wthcgRb
and https://www.youtube.com/playlist?list=PLvnmVmt0dvofO85v7634jpIrsZJ9B9oAk
If you want commentary without gameplay, see https://www.youtube.com/watch?v=b_eUqVGh7eU
and https://www.youtube.com/watch?v=5kOp7wENecE
*Update - one commentary node found missing. You found it here along with a little bonus:
https://youtu.be/3wZtGnpcjkY
No commentary. Fast run. Expert walkthrough. PC, FullHD 60 fps, 1080p60. i7-3770K, GTX 660