Because some achievements I can not get?.
For example the achievement of being the last man alive in a game of infection … I already was the last man alive a thousand times and still did not win this award.
Other than I am the conquest of doing supercombinações with covenants in needler.
There are others that can not such as to get three deaths shots in consecutive head in an organized game … I play living dead every day and always kill several zombies with headshots most never earned this achievement.
In addition to these there are three achievements " Emergency Room " and "Skulls Crushed " I can not win.
Please tell me what to do to receive these achievements and I’m sorry for the size of my doubt.
Yeah i dont see this going to be fixed any time soon. Halo 5 is there top priority them going to fix problems on xbox 360 is just to much work they want us on the one 
> 2535406955379848;2:
> Yeah i dont see this going to be fixed any time soon. Halo 5 is there top priority them going to fix problems on xbox 360 is just to much work they want us on the one
But then these achievements are not unlockable ?
Those are DLC achievements. All Alone has to be done on a Defiant map and Top Shot and Emergency Room has to be done on an Anniversary map.
> 2533274824872173;4:
> Those are DLC achievements. All Alone has to be done on a Defiant map and Top Shot and Emergency Room has to be done on an Anniversary map.
So we need to have the map pack to earn these achievements ?
> 2535444296991467;5:
> > 2533274824872173;4:
> > Those are DLC achievements. All Alone has to be done on a Defiant map and Top Shot and Emergency Room has to be done on an Anniversary map.
>
>
> So we need to have the map pack to earn these achievements ?
Yes.
> 2533274824872173;6:
> > 2535444296991467;5:
> > > 2533274824872173;4:
> > > Those are DLC achievements. All Alone has to be done on a Defiant map and Top Shot and Emergency Room has to be done on an Anniversary map.
> >
> >
> > So we need to have the map pack to earn these achievements ?
>
>
> Yes.
Thank you, then
> 2535444296991467;7:
> > 2533274824872173;6:
> > > 2535444296991467;5:
> > > > 2533274824872173;4:
> > > > Those are DLC achievements. All Alone has to be done on a Defiant map and Top Shot and Emergency Room has to be done on an Anniversary map.
> > >
> > >
> > > So we need to have the map pack to earn these achievements ?
> >
> >
> > Yes.
>
>
> Thank you, then
not just that you have to find an infection lobby with everybody having the map packs