I'm unable to finish the first set's last quest "win a fight with Hondo Onaka on your squad", although I have more than the required 130 shards for Brutus and won several fights in different game mod...
Ideas
So it actually says win a battle with Brutus and Hondo. Did you have them both on your squad?
This was helpful, thank you! In German it doesn't mention Brutus being necessary, but with him on the same team, it worked.