At around 20 minutes, Pete is holding an M16 style automatic rifle, which he points into the air and fires a volley. The rifle clearly has no magazine inserted so the most it could shoot is one round, not a full volley of rounds. In fact, at other times when the automatic rifles are shown, they have no magazines inserted. For realism and continuity, they should have had at least magazines inserted.
At around 19 minutes into the show, Pete is reaching down to the ground to pick up a stick. He ends up picking up a snake instead. A green box which was holding the snake is clearly visible and is dragged into full view as Pete turns to show it to Benson.