You know how sometimes it can be very frustrating to try and find where you need to go, in order to start a duty assignment?
How about just eliminating that frustration altogether? Just allow players to select any assignment chain they need to complete, or that they would like to start. Then let the player transwarp to a location where that Duty Assignment can be started.
Also, maybe add a way to increase the odds of the desired Duty Assignment appearing to 75% ? That way instead of going to the same location multiple times per week hoping to see that Rare Duty Assignment, you can just transwarp maybe one or twice if you're getting extremely frustrated.
The once per day limit will mean that it can't be abused to speedrun completionism. But it can be used for more casual players who are just not having the best time with one mission. This also means the fan-made Wiki for Duty Assignments will be filled with new information that is correct and verified to be correct. So it'll improve the experience for everyone.
It's just a quality of life improvement, but I think it'd be a welcome addition.
Cheers!