Simulated Sniping - U.S. Army Recruits Teens With Internet Game
For infantry pre-basic training, it's been done. It's called America's Army. About a 250M download, realistic first person shooter. You and I paid for it.
Supposedly, when they rev the game, you won't be able to download it; you'll have to pick up a CD at the local recruiting office. 21st century marketing.