I really don't see the point in completing the assignments anymore, since the amount of coins they award is less than they cost to create. And, supply officers are almost useless--yes, they may save time to create ONE item, but you need 40-90 items per assignment, so what's one more hour when you'll spend 89 hours anyway?!
I guess my question is, do the rewards for the assignments improve to make it worthwhile? So far they seem lame.