It’s currently my friend and I and we’re looking for some people to make it fun. No mic needed and you think you’ve got a fun map when we’re done with the first few games then send me a message and I can promote you. Bring all your maps and game types 'cause we just might play 'em. Message me, Scary Xenomorph, for an invite. Unfortunately this is a no map pack lobby so everyone can play but a lot of the good maps will have to be left out. 
But please come! It could be fun. 
This is just what I was looking for when I came to the Halo 3 forums, I’l add you.
GT: Monereeka