Hunter did go out on watch, though he also left part way through the night. He was limping his way back to Irene's house with his Rifle in hands and the rest of his gear on his back. Took a good while to find his pistol but he did, it was now in his holster. He figured the best way to get keep the weapons was to act like he had them all along just didn't let on.
When Hunter got back it was almost Dawn. He took aim with his rifle on an infected not to far outside Irene's house, he would fire the weapon but the shot was suppressed. Hunter had the suppressor, he just didn't use it well traveling, only when he planned to stay in one place for longer then a day or two. He guessed that he was going to stay for a while.
Hunter knocked on the front door to avoid causing a panic. He tried to act as non hostile as possible, he had been an ass the day before but that was mainly out of fear. He trusted these people enough that he didn't need to be ready to fight them all the time.