I didnt get Halo 3 Campaign achievements?

[richarddrake36]

When i played online campaign with my friend, i completed 2 levels on legendary and wasn't rewarded any achievements for it, do you not get achievements if you do the campaign online?

 

[TheRedCure]

You do get achievements it just sometimes lags a bit and skips you out. This may mean you have to complete the level again.
To be honest its just tough luck

 

[joe b]

i dnt think u do i think u have to play it just on ur console.
if u've already completed it u may have to start from the beginning on legendary to get the achievments

i ent sure tho cos i did it on legendary first time ^_^

 

[LILLIAN M]

did you ever use cheat's cos then achievments are disabled

 

[cuyler a]

You have to do it on a rank Normal or higher. Did you?