Beat Horde Mode on Beginner or higher difficulty
Beat Horde Mode on Familiar or higher difficulty
Beat Horde Mode on Skilled or higher difficulty
Beat Horde Mode on Master difficulty
Beat Skirmish AI that was Beginner or higher difficulty
Beat Skirmish AI that was Familiar or higher difficulty
Beat Skirmish AI that was Skilled or higher difficulty
Beat Skirmish AI that was Master difficulty