My fav

Playlist combined with various songs from the Left 4 Dead franchise. 

Left 4 Dead

http://www.newgrounds.com/collection/castlecrashers

Track from PlayStation 3 game Twisted Metal.

"Hiding the Secrets" track from level E1M9 in the game Doom. Remastered.

Free DL! :)

Picture: http://www.zerochan.net/807725

Second Tank's theme from Left 4 Dead 2 OST.
Disclaimer: I don't create this song. All rights belong to Valve.

Left 4 dead 2 the passing´s horde danger music