When a general fights battles or an agent carries out their mission they gain experience. With enough experience behind them they will increase in rank and skill points will be issued. At this stage they may invest a skill point towards acquiring a new skill or upgrading an existing one, allowing you to shape a character's career path. Skills require one point per upgrade and one point before they are awarded. Certain skills are associated with specific ranks, meaning that they cannot be acquired until the character has reached that skill’s rank requirement.
