Missions functionality has obviously been a great addition to World of Tanks. It has seen a few improvements since the initial implementation.
1. Do you like it now? What you don't like about it? How could the entire system be improved to be more useful?
2. What do you think about personalised missions, i.e. system that would track player's progress throughout the game (tanks researched and purchased, crew skills, etc) and offer unique missions based on that progress? In such a system, each player would always have a goal (or a few) to complete.
3. Missions could also be used for tutorial purposes to explain battle and garage mechanics.