I know it kinda screws up the gameplay but it might be kinda nice. I remember on Metroid Prime 2, the epic music was always playing and it worked excellent. It's not needed, but I also wish there was a single-shot, bolt-action sniper rifle.
It would be nice to have more noticeable music in both single and multiplayer. Sad thing was I couldn't even listen to my own music when I was using wii speak :(. Hopefully the headbanger won't pick up stuff in the background as much.
Scientists investigate that which already is; Engineers create that which has never been -Albert Einstein Wanting: Golden Sun DD, Conduit 2, Starcraft 2, Civ V