Marie bit her lip. She would normally defer to the sniper's greater experience and training in the field, and wished to avoid conflict, but this seemed a critical enough issue that she needed to speak up.
"Pardon the intrusion, but the Zoo School Building is only a single story, with a triangular roof. The Arsenal, the administration area, is four stories, flat-roofed, and on the perimeter-it offers a greatly superior vantage point."
She waited for a response to her suggestion as they moved on, and then responded to Christina's question as to a visual, and, a well-camouflaged being catching her eye, hissed a quick response while searching for cover. "There. Bogey, Vector one-on..four o'clock-under tree cover."