Survivors (Call of Duty Black Ops 2: Green Run FanFic)

Three young sibling were just enjoying their lives with their no good horrible dad, who forced them to train shooting every day non stop In little little town in the middle of nowhere. The only way out and in, was by a simple robotically operated transit bus. These siblings names were Scarlet, Tara and Cole. The three triplets were born in a perfect world, or so they thought. One day their father left with no warning and just completely left his kids behind as he boarded the Transit bus as far away as possible. 6 years passed to soon and the Zombie uprising was in full action, the trio being the only survivors left in the town. But then the same bus that their dad previously left on returned and with no traces of their father. Four strange people come off the transit bus and start killing off the zombies. Can they trust their mysterious saviors? Can they survive?