even though some people like this games. I think it's crap. I can't even change the controls to my liking. barricade usually falls down pretty quick. And to top it all off, its difficult to find survivors when your barricade keeps FALLING apart.
Do a game about them terrortists. Mission-1: 9/11 you play as the terrorist in this level as a flashback of america where you must invade the plane and bomb the twin towers. then we go into iraq and afghanistan in the few levels. the sequel will be Yemen.