Originally Posted by
Kromy
Apparently the silhouettes are masters who were supposed to be leaders of each singularities, and they are called A team.
From top to below, each masters had planned to summon: Lancer, Saber, Caster, Rider, Archer, Berserker, and Assassin? (not stated specifically).
There is a humor those A team masters may have planned to summon FGO's CM servants (Scathach, Altera, Mephisto, Ushiwaka, Arjuna, Darius and Jekyll) because 5th guy loves Hindu mythology and 4th girl is Japanese. here's the list -
Crystalia Volda = Lancer
Ophelia Famrsolone = Saber
Gatok-san (mentioned in dialogue)
Kadok Zemurpes = Caster
Akuta Hinako = Rider
Scandinavia Peperonchino Archer
David Zem Void Berserker
Beril/Veril Gut.