Possible ideas for sorties

[Jhura]

I am really hoping that the Assault game mode that is found on the Kuva Fortress tile set is a precursor to future sortie changes. 

Right now, sorties are just random missions with gimmicks that culminate in nothing other than "yay you did these three random missions here is a present or whatever!"

With a change to be more like the assault mode, there would be progression and they could even culminate in a more difficult boss fight (since we are stopping X npc's forces). This would give a small narrative as to why we are stopping these forces in the first place and why they have taken priority. 

Thoughts?