Click Me [drive.google.com]
Put the "players" folder in this location:
C:\Program Files (x86)\Steam\steamapps\common\Call of Duty Black Ops II\players

Be sure to make a backup of your own save file.

There are a total of 160 challenges in this game. My save file has 159/160 challenges completed so that you can do the last one yourself and get the achievement.
Sounds easy right? All you need to do now to get the achievement is to finish the first level "Pyrrhic Victory" without dying/failing the mission. If you restarted from a checkpoint during the mission it may be null and void.
Select the Recruit difficulty to get it over with as easy and fast as possible. My save also has all campaign missions completed on veteran as well as all intel collected so you get other achievements as well. And well, thats about it!

If this guide has helped you in any way, consider sharing it so that other people like yourself may benefit :^)

Other guides by me:

Show Off, From Beyond the Stars, A Mystery Solved, Close Shave SAVE FILE http://cs2bus.com/sharedfiles/filedetails/?id=884954525

Personal Decorator (& others) SAVE FILE http://cs2bus.com/sharedfiles/filedetails/?id=844159446

Heart of Gold & The Lives of Others SAVE FILE http://cs2bus.com/sharedfiles/filedetails/?id=749772300

All Missable Achievements and their Save Files http://cs2bus.com/sharedfiles/filedetails/?id=707288823

Waste Management Achievement Fix http://cs2bus.com/sharedfiles/filedetails/?id=658564227

Peyote Plant Locations Guide http://cs2bus.com/sharedfiles/filedetails/?id=512104922

All Collectibles/Gear/Unlocks http://cs2bus.com/sharedfiles/filedetails/?id=615434440

All Collectibles/Upgrades/Activities http://cs2bus.com/sharedfiles/filedetails/?id=618975619

All Collectibles/Upgrades/Activities http://cs2bus.com/sharedfiles/filedetails/?id=619567241

Auto Fanatic/Hollywoodland/City of The Angels http://cs2bus.com/sharedfiles/filedetails/?id=620962071