When she saw Barker and Cole fighting Ash had pulled out one of her pistols, ready to shoot Barker if for some reason Cole got into trouble. She could easily kill one without even grazing the other. Something was clearly wrong with Barker and she'd always hated the asshole anyway. Cole was a much better commander in her opinion even if he hated the position. After Cole killed him and had his armor squared away she walked over to him and whispered softly so only he and possibly the other Agents could hear, "What about the grunts? Do you think they're still ok or could they have been infected while they were alone with Barker?"