Why does upgrading a European Irregular (10) to a Fusilier (12) cost 6-7 times as much as upgrading an Arquebusier (8) to a Fusilier? In my current game, upgrading a European Irregular to a Fusilier is costing me 1998 gold. And I have a lot of Irregulars. Upgrading an Arquebusier only costs me 300. ...they aren't getting upgraded, obviously. To the trash can with them. Edit: Even more absurd: Upgrading Pikeman to Fusilier: 1500. Upgrading Pikeman to Irregular: 10. Upgrading Irregular to Fusilier: 2000. I mean, come on.