After seeing that many half life songs have been remixed here, I decided that this should be the place to ask this!
The main theme of the best half life mod, added to steam in 2016 as a F2P game. It would be great to have this remixed as an epic orchestral or perhaps an epic metal rendition.
I will link here the songs, as they have evolved through the years with the different versions of the game up until the final version we have now, so you can get an idea.
3.0 version https://www.youtube.com/watch?v=ki3LProOv-E
4.0 version https://www.youtube.com/watch?v=9PWRkMxmqcw
5.0 final version