I was listening to some good Machine Head stuff (the metal band, not the deep purple album) and while listening to Halo I thought "this would be an AMAZING song for rock band"
Anyway.... the solo..
there are two guitar parts. two different guitars that makes intricate harmonies, and the aftermath is a kick-ass song.
Wouldn't be great to be able to play the two different parts together with a friend? I mean, if we can have keys charted to guitar, and rythmic guitar instead of bass, why leave out the chance to have TWO guitar and a bass?