Factions Brotherhood of Steel Caesar's Legion Chairmen Crimson Caravan Followers of the Apocalypse Gun Runners Jackals Great Khans Kings New California Republic New California Rangers Omerta Powder Gangers State of Utolbitha Nightkin And heres the Locations: Mojave Wasteland 188 Trading Post Black Mountain Camp Forlorn Hope Camp McCarran Camp Nelson Camp Searchlight Dinky the Dinosaur Helios One New Vegas Old Mormon Fort Repconn Thorn Settlements Boulder City Freeside Goodsprings Hoover Dam Jacobstown Nipton Novac Primm Casinos Atomic Wrangler Casino Buffalo Bill's Casino and Hotel Gomorrah Lucky 38 Silver Rush Tops Ultra-Luxe Vikki and Vance Casino Vaults Jungle Vault Vault 21 New Vegas Strip LVB Station