@JesusFistus_ARK_ please try the following:
For PC:
- Go to Documents->Battlefield V->settings - Move all files out to desktop,
- Within Origin disable the cloud save feature and start game,
- Do the mission's you are not getting the challenge counting again -> hopefully get the reward
- Close game and put files (see1) back.
For PS4:
- Export the game save files to an USB drive.
- Delete the game save files in the console.
- Start the game. You'll have to adjust contrast and play again the intro.
- Now, play the War Story and complete the bugged challenge. It will show correctly achieved.
- Close the game, and restore the game save files from the USB to the console.
- Start the game, and you'll have your reward at the armory.
For Xbox:
- Please move the saved file from the Xbox to a USB stick,
- Clear local and cloud saves for BFV. (This wont remove multi player data)
- Start the game. You'll have to adjust contrast and play again the intro.
- Now, play the War Story and complete the bugged challenge. It will show correctly achieved.
- lose the game, and restore the game save files from the USB to the console.
- Start the game, and you'll have your reward at the armory.
I hope this works for all of you! If it does xp appreciated ;-)