halo 3 transite stations?

[beastinskater98]

in halo 3 there is an achievment for the transite stations or some name like that in campain. please tell me a good website to help me with this or tell me were each one of them are and how to get there
terminals not transite stations

 

[Ozzy A]

ok check it out... go to youtube.com and search for marathon man achievment thats the way that i got that achievment... you at least have to find seven of them.. and once you watch read the description closely!!