I was wondering if participating in Daily Challenges (involving campaign missions) will break my Legendary Campaign progress and my goal of earning the "A Monument to All Your Sins" and "Gods Must Be Strong" achievements. In other words, will the game keep track of the missions that I've completed under Legendary difficulty if I jump into a campaign mission for a Daily Challenge? Any progress that I've made on an uncompleted mission would be lost but would my completed missions still be tracked and counted?