So the "bad guys" are the "terrorists". Easy enough. Just head out into the street and shoot the ones wearing the "bad guy" hats and the "terrorist" sunglasses. Can't miss 'em.
But wait. Are the terrorists the various Sunni insurgent factions who are attacking each other, the Shiites, the Kurds, and US soldiers?
Or are the terrorists the numerous Shiite militias who are attacking the Sunnis, the Kurds, and US soldiers?
Or are the terrorists the Kurds who are mounting their own militia attacks against the Sunnis and Shiites?
Or are the terrorists the Iraqi "police" who are acting complicitly with insurgent factions and militias of choice?
Or maybe the terrorists are the various governmental factions that are cooperating with their chosen insurgent group or militia and actively advocating for and pursuing the expulsion of US forces?
Whatever. Just shoot some Iraqis. If you get the wrong one, the worst that can happen is a court martial. Have at it guys.