Original backtrack video:    • Half-Life 2 facts you actually did kn...  
Half-Life 2 movement:    • How to Move Fast in Half-Life 2  
Quickclip/yesclip:    • (half-assed) Tutorial for Canals 07 y...  

00:00 Intro
02:17 Breen 1 - c17 11
08:47 c17 10b - c17 3
11:02 c17 2 - c17 1
11:45 Prison 8 - Prison 2
16:57 Prison 1 - Coast 1
20:03 Town 5 - Eli 1
23:03 Canals 13 - Canals 2
28:40 Canals 1a - Trainstation 1