Didnt get the achievement for doing the 3hr run

Games Halo: The Master Chief Collection
1

So i did a couple missions in coop, the thing is i got the the “Gods Must Be Strong” achievement but not the 3hr achievement.
Legendary Run Time - Imgur: The magic of the Internet
“Gods Must Be Strong” - Imgur: The magic of the Internet
is it just a glitch or can i not do it in coop???

2

bump

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> 2533274799403438;1:
> So i did a couple missions in coop, the thing is i got the the “Gods Must Be Strong” achievement but not the 3hr achievement.
> Legendary Run Time - Imgur: The magic of the Internet
> “Gods Must Be Strong” - Imgur: The magic of the Internet
> is it just a glitch or can i not do it in coop???

This happened to me in ODST and I had to play Halo 3 online to get it to pop.

Make sure the cutscenes are also completed on legendary and then try playing Reach online.

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> 2533274925904397;3:
> > 2533274799403438;1:
> > So i did a couple missions in coop, the thing is i got the the “Gods Must Be Strong” achievement but not the 3hr achievement.
> > Legendary Run Time - Imgur: The magic of the Internet
> > “Gods Must Be Strong” - Imgur: The magic of the Internet
> > is it just a glitch or can i not do it in coop???
>
> This happened to me in ODST and I had to play Halo 3 online to get it to pop.
>
> Make sure the cutscenes are also completed on legendary and then try playing Reach online.

the cutscenes are also done i legendary, added them up my self and got 2.7745 no idea what that is actually since my maths is terrible