halo 3 achievment help?

[dude]

who wants to gather up some friends and get some achievements the katana and security helmit? heres the things that are a must!

everyone has to have mythic maps
we must have 8 players
we must all have mics

my gamertag is ffbyes

ill explain everything in the games thanks!

 

[Your M]

I've been looking for people to do this, I'll add you in game.