Where does Freak Fortress 2's The Tank theme (titled metalfox.mp3) come from?

There is a music track in my Team Fortress 2/Freak Fortress 2/sxh/TheTank/ folder called metalfox.mp3. I asked someone in game, who said he remembers that it's from old game but doesn't have the exact name. I have been asking people everywhere if they have even heard where the song is from but they don't know.

Searching for metalfox brings up links from Starfox 64 which I tried listening to the music but none of it sounds like this.