With our first four class updates we were tying the new weapons for each class to a set of achievements. Our intention was to make a set of achievements that eventually all players would get, and would be fun to get along the way. In some cases we did a good job at this (Scout), and in some cases we did a bad one (Medic). Across all of the class packs we were disappointed in the number of people that got to play with the new weapons, and feedback from the community was generally not favorable with this approach.