sorry man, but thats too expensive for an achievement. you can always find people if not here on other sites that will do it with you for free.... i myself just beat the campaign because i was in school even though i got ODST monday night, and although i do not have the vidmasters yet, i have read what you have to do, and yeah they are kinda a bitch to do. but i would not pay some one 20 bucks for one. not even 10. you should do a bundle, 20 bucks for all three. that maybe i would do...