İ got a problem completing the 90 challenges for all missions. In Mission F1 there is a challenge where you have to destroy 5 turrets with a magnum. Everytime i do this the counter won’t go up. I have already 2. I tried restarting the mission, the game tried to just shoot it with the magnum but nothing will help. The other 2 challenges for this mission worked normally. Is this a known bug? What can i do now?
Thanks for bringing this to our attention. We’ll make sure this information is passed to the appropriate team to investigate.
A Little update: I played now on Windows 8 and tried to complete that again. Still the same and in Mission F2, when you have to kill 20 suicide grunts with a tank, there is the same Problem. No countings. I hope this can help you to fix it much more faster!
Sincerely,
cenGii91
Thank you for providing additional info!
In order to unlock the this achievement, you will want to use a [Scorpion tank](https://waypointprod.blob.core.windows.net/blogfilestore/storage/2014/1/8/scorpion tank.jpg), not a Grizzly tank in order for progress to be logged. You will also want to make sure that you’re attacking the [shade turret](https://waypointprod.blob.core.windows.net/blogfilestore/storage/2014/1/8/shade turret.jpg).