A discussion on the Arqade sister site brought up an interesting question that I thought I'd share here.
What is the difference between a quest and a mission? Given the roots of the words, quest from the latin quaerere (to ask/seek), and mission from the latin mittere (to send).
It seems that you go to seek something on a quest, and a mission is something you are sent on.
So, if someone sends you on a quest, does it now become a mission? (i.e. Can you be sent on a quest?)