LogFAQs > #962576218

Master is eldest and most experienced. Master is most technical and has extensive combos.

Ace is most overall capable. Ace would be balance and efficient.

Leader is shot-caller. Leader stats depend on teammate, but otherwise a weaker version of Ace if playing solo.

Guardian is the muscle. Your usual strong fighter with high durability and crowd control.

Weapon is the spy or assassin. Weapon is your usual faster, sneaky fighter with critical hit bonus.

Engineer is the tech inventor. Engineer has special gadgets such as barriers, shields, holograms, and drones.

Doctor is the bio chemist specialist. Doctor focuses on AoE, heal, regen, and status effects.