Me and my friend keep complaining about what a pro is. He says he's a pro because he beat Halo 3 on legendary, most of the levels with MY HELP! He says he's a pro because he killed over 5,000 things on campaign, and he's not even aloud to play on live! Oh yeah, and probably half of them are grunts! He says he's a pro because he kills me all the time, and guess what! I SUCK AT HALO 3, LIKE, REALLY BADLY! He played again my friend, and he got pwned like, really badly (3 - 27). So, post your ideas of being pro on Halo 3 and ODST. THANKS!!!