If you're having issues. It might be possible that the games progress is under your profile and not a gamesave. That is my direct save from my memory card.
Theres two things that come up, a file called "Halo 4 data" and "halo 4". the second one is the save game progress and i dunno what the first one is, but this file is the data one.
Does this save work an unlock achievements if so how do we unlock them Sent from my iPhone using Tapatalk
I dont think it would unlock an achievement because you would have to play each mission on legendary and thats stored in your gdp in the pass like the rest of the halo series. It's like cod and gears you would have to play each mission. If this save checkpoint is at the end of the mission and you finish it from there it should give you that mission on legendary. Hope this help and clear up what this save might unlock. if you want to get legendary achievment the best and fast way is use the editor on this site i havnt used it yet but as the rest of pass halo's you will have to edit your save every mission i could be wrong this time but pass that how it work. but with the editor you want die so its easy.
I have used it like 7 different times it always restarts the level it' needs fixed Sent from my iPhone using Tapatalk
Nice Share Pete. Maybe it Might unlock Achieviements if you complete each mission on like easy or something