Quests are the tasks that players can complete. They give rewards to the player's experience, class ranks, items for use, etc. They are meant to be the major action in this application.
Quests can only be defined and applied by DMs (Admins). Players can view the quests that they have performed (and other players have performed), but they cannot file that they have completed any.
There will be two tables for quests, one that defines each quest, the description, name, rewards, etc. Another that defines each quest that is completed and who has completed it (this will be a general many-to-many table).