Chasing the achievements, I had to do 10 assassination missions for the Arbitrator. Doing so was probably one of the worst experiences I had with the game.
These are radiant missions with a random civilian character needing to be killed. For some reason it seemed to glitch and I had four of these missions in a row at Gagarin Landing; all in the exact same spots. The others were at abandoned bio factories, all in the same place, all with NPCs just standing there and not doing anything.
The worst part was probably the waiting, you can’t immediately do these missions one after the other but have to wait a random ass amount of time before the Arbitrator will give you another target. It was torture.
The Trackers Alliance has fun missions, not sure why Bethesda couldn’t bother to put in some effort with these assassination targets. At the very least give them names and some lore to who they are and why they are wanted dead. Just real lazy.