I downloaded Heroes 6 from the internet (Might & Magic: Heroes 6 Gold Edition v2.1.1.0 + 4 DLC). The default difficulty level is set to "easy". I started playing skirmishes on the easy level and can't win a single one. I do almost everything perfectly – I gain experience, gather troops, but the computer's threat level is always "deadly" or "high," so I always lose. Also, as soon as I move away from my castle, the computer immediately attacks it. It feels like I'm playing on "hard." Please help me understand what's going on.