It''s Keith David, if you searched it you would have known
http://en.wikipedia.org/wiki/Arbiter_(Halo)
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Okay, smartass.
Jeff Steitzer
The Announcer (voice by Jeff Steitzer) is the male voice in Halo: Combat Evolved, Halo 2, Halo 3, Halo 3: ODST, and Halo: Reach multiplayer that calls out certain phrases when the criteria are met (like the Announcer calling out medal titles when certain medals are obtained and general events in the game).Sources:Halo wikipeida
yes
yes
No, they are two completely different multiplayer setups.
Yes you can play both Halo: CE and Halo 2 multiplayer on PC.
Indeed, Halo: Combat Evolved for the Xbox is multiplayer.
no you cannot
Multiplayer Map. Terminal.
No you can't.
Halo 2
Nothing. The multiplayer map-pack is an add-on. Which means you can't play the Multiplayer map pack without Halo 2. The only thing that is different is the maps, that get downloaded to your Xbox when you boot up the multiplayer map pack. The models, textures, gameplay is all exactly the same.
No, only Halo 3. Kinda stinks, but what can you do?