halo 3 terminals question?

[Lucas]

in halo3 for the360, do you have to finish the missions after finding the terminals or can you just quit after finding and activating the terminals? also, what order are they in and do you have to do it tin order to get the achievement?

 

[Eric]

you don't have to do it in order or finish the level(but make sure you leave the level after you got all of the terminals in the level) if you got on all of them and didn't get the achievment your probably not staying on it long enough, after you see all the stuff it stops and turns red or something,you wait a little bit more than goes to some other stuff, the second long stop and it counts for you accsesing it and if you don't know were all of them are look it up on youtube