An annoying bug was discovered and properly fixed.

There was an issue with a gameplay mechanic regarding the game's collectibles. The game had a hard time updating the quantity of obtained collectibles, thus playing a looped and annoying sound effect while on a mission after the player managed to obtain at least one of the collectibles.

The download is going to be replaced, it should be ready in about an hour from now.
The download of the fixed version is ready!
For all of you who already installed the game, though, here is a small hotfix (English version only):

http://www.mediafire.com/download/i5142s5syy5cspc/ENG_HOTFIX.rar

Simply replace the files with the one in the game's directory.

I had to replace the download link with the fixed version. This bug was SERIOUSLY annoying. It's because of a last-minute modification I made to the game. That's why it wasn't discovered by the testers.
I'm really, really sorry for this inconvenience.