*both notice the gunshots end and hear the agonized groaning of Iri's victims*
Iri: "Oh Kiritsugu dear! I'm all out of ammo! Would you be a dear and give me some more after your done screwing that harlot of yours?" *said in the radio from Iri's car*
Kiritsugu: "Iri, dear, there is nothing between Maiya and myself. Also, there is more ammo in the trunk, just please put what you don't use back when your done. We can't afford to waste any resources right now." *said in a shaky voice to his handheld radio*
Yes, but Irisviel is pissed off so he really, really doesn't want to even be in the same country as her at that moment. It's the only way to assure his safety and the last thing he wants to do is become her next target so Kiritsugu is letting her blow off some steam on her poor, poor victims. Better them than him.