They have been trying to reach young people since they started producing FPS games back in 2000. Earlier versions 1.x and 2.x broke all kinds of records for online players, downloads and registrations. The early versions you had actually go to school in the game and pass tests to be able to play. The medic training was very informative and provided really world information that could be used offline. FPS game play but in order for your team to win, working together as a team was a must. Designed in away to reflect the Army's core values.
The 2.x number of users online and servers pretty much reflect was Call of Duty is today but they dropped the ball with new releases that were just not the same and took too long to come out. They would not need to be recruiting through COD if they just simply updated 2.x.
If they still wanted to reach the youth through gaming they should have simply improved the latest version and learned from earlier successful versions. Instead with only a few thousand left daily playing the game they gave up this year and shut down the project.
It is foolish for the Army to try to reach people through commercial games where you have no control over content and where they actually had a game that rivaled COD in users