This unit suffers no movement penalties for Difficult Terrain, treating it as Open Terrain in the Movement Phase. It is not Hindered for Charging through, or ending its Charge on, Difficult Terrain. Obstacles still Hinder.
This unit can make a single At the Double or Advance order after Set-Up is finished but before the first Turn of the first Round begins. If moving At the Double from this, it treats Obstacles and Difficult Terrain as Open Terrain. If both armies have Scout units, each player rolls a D6. Higher scorer decides who moves their first Scout, and then players alternate.