Iran has been doing this a while on the theory they can keep the escalation controlled. Up until now though they’ve gotten lucky with not killing any US soldiers. From a domestic political situation the Biden administration will probably need to retaliate. Hopefully this won’t get too much further out of hand.

From what I have seen so far it doesn’t really matter if it was arranged. There just isn’t much evidence of a command center. Sure there may have been a few AKs and a tunnel but that’s hardly a command center.