As the title says unfortunately there seems to be a bug on achievements which says I still haven’t finished one mission, this is really annoying! A quick look at the mission select in the video below shows I did finish them all on legendary so frustrating the achievements don’t match. Not sure I really want to do The Package again tbh 
Anyone else found a work around for this?
Try verifying game files and installing/uninstalling
> 2535412226505972;2:
> Try verifying game files and installing/uninstalling
Thank you. I did verify the files which added 3 that were missing/corrupt a few 100 mb download. Unfortunately this hasn’t backward solved my achievement issue. I feel I will have to re do the package mission. So annoying is on quite a tricky mission but I guess I have no other option