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Improved realistic sounds!

This big sound pack (About 300 different sounds) will replace the weapons, physics, vehicles, ambient... For realistic sounds recorded from real life! Enjoy max realism with this addon!

Credits:
Valve (Default physics sounds)
The Black Mesa Source Team. (Sparks and jet sounds)
FPSrussia (Weapon sounds)
Random youtube videos (Weapon sounds)
Random aviation youtube videos (Helicopter sounds)
My camera recorder (Some misc sounds)

(Update log)
25/01/2013: Fixed helicopter bug shown in the video now it loops properly
28/01/2013: Added M60 and Chainsaw sounds!

Please report any bugs! And don't forget to rate and comment!:)

-----------------I RECOMMEND DOING THIS BEFORE EVEN TESTING THE SOUNDS-------------------------------
How to fix the weird weapon sounds or cut-out?
(It is recommended that you do snd_updateaudiocache command BEFORE testing the sounds.)
Type in the developer console: snd_updateaudioache (It will freeze your game for 1 minute but it will be ok)
If your sounds are still messed, try: snd_rebuildaudiocache (It will start a rebuilding progress monitorized in the console just like Rebuilding audio cache (1854/12842) )
After you rebuilt the audio cache, make sure you type: snd_updateaudiocache!

If the problem persists, this solution is 100% proven to work: (Last tested 06/01/2014
So unsubscribing and suscribing again, should finally fix it (After putting the developer console commands.)

1- Download GCF Scape from Nem's Tools website http://nemesis.thewavelength.net/index.php?p=26
2- Go to Steam/steamapps/left4dead2/left4dead2/addons(Could be in common/left4dead2. Not aware of updates.)
3- Select file improvedsounds.vpk and open it with GCFscape application.
4- Extract the "sound" folder in: "Steam/SteamApps/left4dead2/left4dead2"
5- Go to "Steam/SteamApps/left4dead2/left4dead2/sound", and remove the "sound.cache" file, or move it somewhere out of that folder if you want to back it up.
6- Start Left 4 Dead 2 with the console enabled, and type: snd_rebuildaudiocache . It can take up to 15 minutes, so be patient, you may see a progress in the console, like (2777/54250 files completed)
7-After doing that, the game will probably quit. Start it again, with the console enabled, and type: snd_updateaudiocache.
8- Wait 5-10 minutes, and start a new game.
9- No more cut-offs! Enjoy the soundpack!

EDIT: Sorry, but YouTube has taken my account down because of not blurring two underage girls' faces in a video... All my videos got down, so the previews aren't available... :(

-Alexandrovich