It's really good, but I would say this is a melody for a race, because when you are spotted, it has to be a really disturbing melody, ever played Oblivion IV? When you're spotted there it's like OH SHIT! This is just giving me the feeling to race, or a deathmatch kind of melody, but not really an "Oh shit I'm spotted" melody.
But great anyways :)
Yeah, after giving it a buncha listens, it did sound a bit separate from a stealth theme. Might lump it in with the other stuff for Caliber: A Trip Into Shooting Game Cliche Land.
Didn't think of a race theme yet, though, I never thought of it that way.