i need help on a vidmaster achievment on halo 3 can anybody help please!?

[spawn3396]

i will be up till 1 but me and my friend really need people to do an achievment the annual vidmaster one please help my gamertag is.. spawn3396

 

[American Veteran]

you have to kill a certain amount of convenant to get it

 

[Thomas B]

i can't help u tonight wish i could but heres what u do make sure u play the final mission on legendary hardness with the iron skull turned on and you need 4 players. when u exit the building where sergeant johnson dies go back down to the bottom of all the ramps you should see the ghosts u need for the achievment there good luck.

 

[Andy]

go tot eh classifieds on bungie.net

i dont know the exaclt link but you can just google that and its the first one (it's what I always do) you can always find someone on there and people will read your message and get back to in in literally seconds.