Add an option to re-roll Random and Starmap missions. It could be limited (1 reroll/day), or it could cost a currency (credit). It is quite frustrating when you do the missions, and at the end, you are stuck with the mission/enemy type you don't like or not "optimal" for your build. It happened yesterday, that during leveling my character, I got stuck with only Purge missions in the Random mission list, and its quite frustrating as that is the slowest one besides Datahunt.