Posted on BGG forum:
The Amako Command Tent, although not occupied by a command unit is still worth three Victory Banners, when occupied by an Ouchi Army unit. When occupied the Command Tent hex is removed from the battlefield. In addition, when the Command Tent is removed, the Amako player must lose one Command card selected at random.
Finally, an Amako unit may occupy the Command Tent hex. However, there are no movement or battle restrictions or benefits associated with this Command Tent hex.
Richard Borg