Tyrion was taken aback momentarily before he remembered that Rod, as a Trolian hero, Captain of the King's Hand, Defender of Star Town, and a reserve Elder, possessed his own unique Battle Group.
According to general rules, his Battle Group would join him in battle.
But Rod was only a reserve member of the Hall, without the qualifications to lead people into the Fire Hall.
So when he received the mission and had to set out urgently, he did not bring his Battle Group comrades with him.
But Rod had already been in the Trident River Region for many days; why hadn't they arrived?
Tyrion immediately sent a Spiritual Communication to the higher command to inquire.
But the higher command didn't know either and could only continue to pass the inquiry up the chain.
Thus, the query went all the way up to the Royal City until the head of the Military War Department personally intervened to clarify the situation.
Rod's Black Battle Group included the taboo Mephit.
