How do I find a co-op match in Halo 3?

I can't find a co-op match for Halo 3. Where do I go? Campaign? Matchmaking?





Do I need to know someone to play or will it just find people for me to play co-op with?





I can find VS games just find... where's co-op???








Thanks.

How do I find a co-op match in Halo 3?
if u mean campaign co-op, all u gotta do is go to campaign and have someone join ur party then just start, there isn't any co-op thing like that in halo 2
Reply:wait you mean campaign co-op???


or xbox-live????

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