Smiley sighed as the Invalids started to attack the group. He pulled his rifle from his back and started to pick any he could off one by one at range. Despite using a bolt action rifle he was rather quick to reload. In order to not attract any extra Invalid attention he used his knife to dispatch any stragglers that got too close to him. 

He eventually had to reload. But as Smiley began to load his rifle with extra bullets from his pouch another Invalid started to come up to him from behind. However it wasn't that stealthy in it's approach. He turned and jammed his knife into it's neck, then twisting the blade and ripping it out to finish off his attacker. He finished reloading, closed the bolt, shouldered his weapon and continued firing.