Fox Army
The groups were formed of one or more of each of every type of the fox beasts and each of them covered each other's weaknesses and had their own role in their battles.
The intelligent fox beasts were able to formulate their own battle strategies and took into account the different characteristics of each of the fox beasts and all the tactics that Lex had ordered them to use and taught them.
Lex taught them to cover each other's weaknesses and embedded into them a similar classing system to how human's classified different types of fighting styles.
The red foxes, with the sharpest senses, acted as the scouts and the leader of sorts, while also battling if need be.
The black foxes and the white foxes, with the sharpest claws and teeth, shared the role of the offensive fighter and would deal as much damage to the opponents.