From one of my favorite fan-made games (based off of Tiberium Sun, but if the Brotherhood of Nod won the first Tiberium War). Hard to choose a favorite as there are a handful of well made songs (much better than what comes out of most AAA games today). The one thing I like about this, is that they put the quotes from the MCV in C&C 3 and i feel it fits rather well for the song, and the premise of the game.

[youtube]https://www.youtube.com/watch?v=hvBdYodnNMU&index=40&list=PL884345AD63C87D1A[/youtube]