The difficulty of the mission is determined by one of the five difficulties that the captain of the crew chooses beforehand. Harder difficulties can be unlocked once the player levels up their '''Tactics Skill'''. This [[Skills|skill]] can be upgraded by simply completing Combat Missions. | The difficulty of the mission is determined by one of the five difficulties that the captain of the crew chooses beforehand. Harder difficulties can be unlocked once the player levels up their '''Tactics Skill'''. This [[Skills|skill]] can be upgraded by simply completing Combat Missions. |