I really like where you are going with the Mission additions.
The one line mission name can sometimes not really tell the player what the mission is like and if they would be interested in playing it.
It would be awesome to eventually add a mission abstract field to the Mission Group Properties dialog with a multi-line text field where the designer could add one or two paragraphs.
In the mission list, to conserve real-estate, the abstract could display in a popup text field when hovering over the mission list item.
