Valkyria Chronicles 2 has more classes than Valkyria Chronicles. Way more classes. There are 35 types of military units you can control in the sequel.
The diagram shows two branching choices for Avan, one of the game’s new heroes. It isn’t clear what each class offers, but a screenshot shows parameter boosts like extra hit points and defense for one track.
In addition to that we have a four more screenshots of Avan sniping a tank and Cossette exploring an alley.