The guy who was ambushed is still inside. He can't get out of his hiding place if the zombies show up. The guys have plenty of ammo, and they don't need to worry about the zombies. They just need to suppress them with their firepower. They're killing them faster than they can kill them. The dude who was killed is also becoming a zombie. He's eating his brain. The zombies are driving. They tricked him! The guys who ambushed the guys don1t plan on giving up yet. They stole his best car. They will never be able to escape unless they can fly.