I need help beating the campaign on legendary halo 3?

[sk8_zero4lyfe]

If you dont have the achievement then heres a chance for you to get it yourself it is the last achievement i need
and it would be much appreaciated
just list your gamertag and get on sometime in the next 3 hours
my gamertag is : BlacKxRaiN98765

 

[Miguel G]

dude i wish i could join but the router is in my sisters room and she wont let me hookup my 360 in there

 

[bobby bob]

dude i did this like 6 months ago i have all the achievments but my 360 broke today so sorry