Caravan

Caravans (修学旅行キャラバン) are codenames the Butei High Schools use for field school-trips.

Caravan 1 ( 修学旅行Iキャラバン・ワン )
The first Caravan for sophomores only. While circumstances look like an ordinary school trip, it was to test the students for the best team formations.

Caravan 2 ( 修学旅行IIキャラバン・ツー )
The second Caravan where the assembled teams from the first Caravan to their own abroad destinations and structure their own training.