This definitely fell under 'unless necessary'. Nightwing didn't like killing and avoided it himself. But he understood the need to protect life and limb.

Besides, sniping like that was just cheating.

He let Guy and Bilbo deal with the snipers, forcing himself not to flinch. Instead, he opened up the compartment on his boot, pulling out his medical kit. Not so well stocked as some of the others, but there had to be some sacrifice for space. He moved over to Moses' and Harriet's side, looking grimly at the girl's injuries. Compartmentalizing because there was too much that needed to be done.

"We've been betrayed." The snipers were waiting for them. "Though why they waited for you to finish the download before attacking? I don't get." He glanced up at Moses, then back down to Harriet, checking the wound. And...shit. That wasn't good. It wasn't good at all.