Yeah I listen to him occasionally at work, his voice is very calming and soothing.
Because of this I never even assocciated him with the Chief until someone pointed it out to me after Halo 3 came out.
It would be expected he promote the game on the air, but not the right audience I presume. --- "Walk up to someone, anyone, and tap them on the shoulder. When they turn around, YOU RIP THEIR HEART OUT"-duckfreek