Since parts of the Vault are underwater,many Sections can only be explored while wearing a rebreather or judiciously using air pockets in flooded areas.Enemies encountered within the Vault include giant mantises, giant rats, and bark scorpions. Therefore radioactivity and radioactive water are some of the main dangers of the Vault. Vault 11 is located in the Mojave Wasteland in 2281.It is located west of Boulder City and southwest of Trading Post 188.Before entering the Vault, there is a rock cut to the right of the main door.Vault 11's water purification system has been damaged by age and civil war between the inhabitants. Il Vault 3 è stato costruito nella parte sud-occidentale di Las Vegas,alla periferia del settore industriale della città.Salvo alcune inondazioni nei livelli inferiori,la Volta è ancora funzionante nel 2281.È occupato dai Demoni,che hanno ucciso tutti gli occupanti originali del Vault.I Demoni usano il Vault 3 come fortezza sicura e covo di droga.Il Vault si trova sotto un edificio nelle rovine di South Vegas ed è la base operativa di una banda nota come i Fiends.La sua posizione può essere ottenuta dal colonnello a Camp McCarran dopo essersi offerto volontario per aiutare con il problema della banda,dall'anziano McNamara della Confraternita d'Acciaio durante la missione Still in the Dark,da Diane durante la missione Aba Daba Honeymoon o dal soldato Ortega nel baracche presso le fattorie mezzadrili dell'RNC.
The Vault is located under a building in the ruins of South Vegas and is the base of operations for a gang known as the Fiends.Its location can be obtained from the Colonel at Camp McCarran after volunteering to help with the gang problem,from Brotherhood of Steel Elder McNamara during the Still in the Dark mission, Diane during the Aba Daba Honeymoon mission,or Private Ortega in the shack at sharecropping farms of the NCR. Barring some floods in the lower levels,the Vault is still functional in 2281.It is occupied by the Demons, who killed all the original occupants The Demons use Vault 3 as a safe fortress and drug den. Vault 3 was built in the southwestern part of Las Vegas on the outskirts of the industrial sector of the city.