Going into more details, this project directly replicates the exact same ways the real zombies mode plays, including a points system, power, and even two-hit kill. As the modder noted, this is an effort to replicate the enjoyable horde survival from Call of Duty: World At War and Call of Duty: Black Ops, but in the Fallout world. Modder ‘ZRV01’ has released a new mod that adds a Call of Duty-inspired Zombies Mode to Fallout New Vegas.