• mo:UnitType (e.g. mo:RoleOfUnit)

• Nothing

Can be replaced with:

• mo:UnitGeopoliticalAffiliationCode
      A designator representing the country affiliation for an object.

• mo:RoleOfUnit (of mo:UnitType)
      A unit, of which the containing object is a role.
• mo:TaskPerformingUnit (of mo:UnitType)
      A unit that is/was/will be performing the task.
• mo:TaskResponsibleUnit (of mo:UnitType)
      A unit assigned to complete a clearly defined action or activity as it is imposed by an appropriate authority.
• mo:Unit (of mo:UnitType)
      A military element whose structure is prescribed by competent authority.
• mo:UnitCommandOrSupportRelationshipCommandingUnit (of mo:UnitType)
      A unit that has control or authority over a subordinate unit in a command or support relationship.
• mo:UnitCommandOrSupportRelationshipSubordinateUnit (of mo:UnitType)
      A unit that is under the authority or control of a commanding unit in a command or support relationship.

• Nothing