English:
1)Folder "left4dead" copy in a folder with game
2)Open pak01_dir.vpk with NOTEPAD++
3) press CTRL+F, search "teenangst"
4)Do as on pictures

Russian:
1) "left4dead"     
2) pak01_dir.vpk  NOTEPAD++
3)  CTRL+F,  "teenangst"
4)    