Nu trebuie sa il jucati pe tot pe HARD (pentru vanatorii de trofee/achievements). Doar ultima misiune.

To get this achievement you have to beat the game (preferably on Easy). Go to "My Campaign" in the main menu and choose the level "Airborne”, and then set the difficulty to Hard. By now you should have a feel of the game. You shouldn't have any problems with completing this, as the level is fairly straight forward and very short.