L4D1 Crash Course start + Saferoom theme

I'm actually pretty surprised this wasn't done already.
Do you like Crash Course? I like Crash Course! The highlight of this campaign for me is definitely the music, I love the violin sound it has to it. Because of the way the start and safe room theme sound, I wanted to hear both of them stitched together like some videos other people have done. Turns out they fit really well together!
If you're curious, here are some other videos of people doing similar mashups for other campaigns:
• Dead Air (Intro + Safe...
• The Passing (Intro + P...
All of the music belongs to Valve

[@brianp9965]

"Promosm"