I downloaded new software and I'm trying it out.
The reason I chose sound effects from Half-Life is because this song, which I have made in the past, reminds me of Half-Life.
Critics are welcomed.
Enjoy.
On another note, I used a part from a song on Newgrounds.
It's a cool song so here's the link:
http://www.newgrounds.com/audio/listen/202492
Please contact me if you would like to use this in a project. We can discuss the details.