Well it is true that gaming is no different than any other form of entertainment media regarding political views and statements, but Insurgency itself has been in development since 2002, I'd hardly consider the mod then a political statement since the "insurgency" had only *just* begun so to speak in Iraq. Plus the lead designer is Canadian, I'd like to think he wasn't making an overtly Americanized viewpoint on the war
Plus, here is a small excerpt from the "About mod" so to speak:
Insurgency's primary concept is to create an immersive online combat experience for the player,with an emphasis on teamwork and realistic elements to create intense firefights in detailed urban environments. The first scenario is set during the present war in Iraq, after the fall of the government and the uprising insurgency that followed as a result.
Note the "first scenario" part, as they intend to add more scenarios, whether they do or not who knows. It is a mod after all. Mods come and go as we all know.