The “Extra Credit” achievement will not unlock for me on the XB1 even though it says I have 90/90 Assault Ops challenges completed.
I have completed this game on both Windows Phone and Win8. Currently, in progress on the Xbox 360 and have only the co-op achievements to finish on the 360. I have unlocked the Extra Credit achievement on all 3 other platforms. Was hoping that my cloud save would carry over.
I have no counter glitches in any of the individual challenge screens and I have tried to manually complete the challenges on A-1 again even though I can’t tell how I’m doing (since they show completed already)
Also, it appears that completing all gold stars (117 achievement) did not unlock on the XB1, even though I have also completed that on the 3 other platforms.
I just bought and downloaded Halo:SA for the XB1 yesterday or the day before, so it should be the latest version with all patches.
Here is a link to a video I took showing that all requirements are complete for Extra Credit: