This is similar to the tactic they used to destroy the Christian army at the Horns of Hattin. They put up a fierce resistance to draw an enemy attack, then retreated. They lured the crusaders into the area between the Horns of Hattin, and the crusaders were all cocky thinking they had driven them, and then the barbarians in filthy nightshirts closed the trap and fell on them from both sides, and wiped them out almost to a man.
This seems way too easy. While I don't want to be OVER estimating them, I'd rather we worried about UNDER estimating them. So-damn Insane has proven he is a ruthless, vicious, barbarian and I don't trust for one minute that this might not be a trap. Lure us in with "cheers" of our arrival, no resistance, get us in the boundaries, and then fall on our guys (like Mogadishu, which seems to be So-damn's favorite scenario).
Then he sets off a nuke or dirty bomb, destroying Baghdad, annhilating his own people (and the Arab world, of course, blaming it on us, causing an uprising) and we lose most of our Marines and the 3rd ID.
Don't discount this scenario. Wait and see. We need to be cautious here. The game's not over yet, and I won't believe it is until the entire city is under our control, and we have So-damn Insane's head being paraded through the streets of Baghdad on the end of a stick.
The Christian army didn't have satellite imagery. There's no doubt we know exactly where and Iraqis are and in what direction they're moving, while the enemy has little to none of that info. At this point the Iraqis can put up scattered resistance at best. There's nothing they can do that will seriously jeopardize our objectives. And that includes WMD.