Missions and Clear Conditions
Mission:
Kill everything
Capture marked Radar
Hidden Achievement:
Use Team DEFY and complete the stage.
Team Recommendations:
- 1 RFHG (Taunt recommended)
- 2 Dummies
Clear Steps
An RFHG echelon with sufficient AP (just upgrade your AP ammo) and a Taunt Fairy should have no issues with the enemies on the bottom half of the map. The NPC squad can handle the top half of the map plus the boss.
Bombing the boss and then engaging her with the NPC squad also gives the second Hidden Achievement of this event, so might as well do that too.
Note that the RFHG displayed here is just using some of the weaker but still functional options available. Your own RFHG should be much stronger than this, especially if you anchored Grape as suggested.