With the dogs emerging from the darkness Sully let out a groan. He wasn't the sort to be concerned by a feral mutt or three, having dealt with much more serious threats. However, they were now in his and the groups way, blocking them from reaching the screams of the person they needed to save. The front dog made a straight run towards the group, its bare teeth exposed to the air by years of mutations. 

Sully flicked his rifle from his shoulder straight into his hands and took aim down the scope with his good eye. The fast approaching hound was in sight and closing fast. Sully took a knee to allow those behind him to take aim, he didn't want to find himself with a bullet in his back. He squeezed the trigger firmly, the muted and silenced sound of gunfire flittering throughout the nearby area. He then squeezed the trigger once more...it was always worth making sure.