The Vault - Fallout Wiki

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The Vault - Fallout Wiki
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Fallout: New Vegas locations project
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Z-14 Pepsinae DNA splicing lab
Z-14 Pepsinae DNA splicing lab.jpg
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Map MarkerZ-14 Pepsinae DNA Splicing Lab
QuestsInfluencing People
Cell NameNVDLCSLCazador (exterior)
NVDLCSLCazadorINT (interior)
ref idxx001d1c (exterior)
xx0086ca (interior)
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Gametitle-FNV OWB.png

Z-14 Pepsinae DNA splicing lab is a location in Big MT in 2281.


The facility is in the east of Big MT, directly south of the Securitron de-construction plant. After entering the building, there is a lobby area with several desks and filing cabinets. A few piles of mutilated gore are on the floor. On the left side, there is a deluxe chemistry set on a table, which can be used to make chems or stimpaks. Several proton throwing axes can be found in this area. There is a stairwell leading down.

There are several cazadores in the lower area, with a few hiding behind doors in containment cells. A skeleton with a laser rifle and several microfusion cells resides within one of the containment cells. The medical lab behind the large main door contains a unique cazador, Specimen 73.

Notable loot



Related quests


  • Conversing with Dr. Borous reveals that he was responsible for creating the cazadores, possibly in this lab. However, this information is skewed due to the Think Tank's chromometers being scrambled.


The Z-14 Pepsinae DNA splicing lab appears only in the Fallout: New Vegas add-on Old World Blues.

Behind the scenes

Similar to the Z-9 Crotalus DNA preservation lab, the name Pepsinae refers to pepsinae, the subfamily taxonomic designation for wasps. As cazadores are mutated tarantula hawk wasps (Pepsis formosa), it is implied that this lab was responsible for research on the cazador, and possibly the creation of the species.


  • Xbox 360Icon xbox360.png Sometimes the cazadors can glitch out of the interior but will still be hostile to you. They will reappear after about 10 seconds.