name: Naval Group
tasks:
  - Navy
groups:
  - Naval Group:
    - name: Naval Group 0
      unit_count:
        - 2
      unit_classes:
        - Frigate
    - name: Naval Group 1
      unit_count:
        - 2
      unit_classes:
        - Destroyer
    - name: Naval Group 2
      optional: true
      unit_count:
        - 0
        - 1
      unit_classes:
        - Cruiser