There may also be no upgrades for a hero it just depends on who it is.
There won't be nine upgrades for each hero like there are for units, but there may be more than one upgrade per hero. But most importantly, this allows for hero upgrades. Players may also have to adapt their strategies to the strengths and weaknesses of the heroes that they have available. That means it will be harder to field fleets of heroes. If that planet is not featured in the game, the nearest available galactic neighbor is used based on the most accurate star charts that currently exist. To avoid over-cluttering the interface, heroes are buildable from only one planet, which is generally their home planet, although if it is not known, another relevant planet is substituted. Major heroes no longer respawn when killed and are no longer free they are now purchased at the officer academy. The second significant change since the mini-mod affects the hero system.