The disassembled weapons shipment is a special quest item in Fallout: New Vegas. It only appears in the side quest "How Little We Know," given by Omerta gang members in the Gomorrah casino.
- Talk to Big Sal after ousting Cachino
You must complete the first half of the quest by exposing Cachino's activities to Big Sal. After Cachino's death, speak to Big Sal and agree to help him.
- Talk to Troike
Big Sal tells you to talk to Troike. Agree to help when Troike asks you to recover the disassembled weapons shipment.
- Go to the Sunset Sarsaparilla Factory
Leave the casino and go to the Sunset Sarsaparilla Factory west of New Vegas. You can fast-travel or walk.
- Find the Fiend gang
Head northwest of the factory and look for a small band of Fiends. They guard the disassembled weapons shipment and attack on sight. After killing the Fiends, reclaim the shipment and return to Troike.