

My friend and I tried this again using chris 7urbo's solution of playing the Redux maps on Survival and Sharpshooter. I'm not sure what you can do at this point :? If we ever come across a solution I'll update this post. He cleared his cache, transferred his profile onto a memory unit and removed his hdd. My friend and I tried this again today to try and go for his achievement.

Definitely do some research on this beforehand as I'm only posting this as a potential warning to save people some time. After reading some posts, most people seem to recommend deleting the maps and clearing the 360 cache before trying for this achievement, although it's not guaranteed to work. Unfortunately the achievement still didn't pop for him. My friend had the maps before but had since deleted them. I had never downloaded the maps before and the achievement unlocked for me no problem. I believe having the Redux maps will cause this achievement to glitch. Do Survival and Sharpshooter together and then Team Survival and Team Sharpshooter together as switching between these modes does not require the game to be reloaded. The modes are (play them in this order to minimise loading time): You may try to play on the Redux maps if you do not wish to reset your stats (from MCSS Aerocoupe's solution), but there's no guarantee it'll work.

As mentioned so many times, this achievement is glitched to those who have the DLC. There are 57 total from the original and you may have to potentially play through the Redux maps as well if you have already downloaded the DLC. It popped right on queue! Hope this helps ! XEaglExAssassin: After 5 years of waiting finally got the achievement, I downloaded the backwards compatibile version and deleted the map packs before hand and went through the requirements for this. Update 07/05/20: If you had issues unlocking this achievement because you downloaded the Redux maps it looks as though it’s possible to unlock this through backwards compatibility:
