A:Answerno, since its technically a steage unit for xbox one/360 games, you would have to install starfield either on a strage expansion unit or on your internal for it to run. hope that helped :)
A:AnswerIt's because the USB connection is not fast enough to play direct from gen x/s games. The only port fast enough is the memory expansion port. I keep all my titles on the external by default and only transfer games I am actively playing to the internal storage. Hope this information helps.
A:AnswerYes, you can directly download to the drive but if it's a series x/s title you will need to transfer to the internal drive to actually play the title.