I've heard about the video game training before. Sounds kinda lame to me. Since when are Half Life players expert stealth soldiers anyway? Sounds like something the army actually laughs about and makes fun of, but that the publicity sector want to play off as something "cool" to the younger generation (who is obcessed with video games).
I guess that's pretty clever of them.
As far as the propaganda goes, well, c'mon, what else did you really expect from a game made by the army? Even if it is for training purposes, you can't ADMIT realities, even when everyone knows they are true. Not even in a lame ass video game.