While the quest was cut, there are some things that Bethesda forgot to delete: The scripts and fragments are still there and can give some hints what this (and other cut quests) quest were about: For example, searching the files for 'MS03' results in finding 'TERM_DN144_BridgeControl_01092F42', a script that refers to a 'Vault120_BridgeAirlockA'. So I guess DN144 would be a the internal quest name and Vault 120 would be Rapture the infamous underwater vault. However, looking for DN144 in the CK mentions a deathclaw and salem, so I guess its just a generic script holder quest or the ID was repurposed. But there is more: after searching for 'vault120' in the files, I found this comment ';False Failure sequence for when the sub crashes into Vault120' in a scripped called DN158QuestScript. The weird part is that this whole script mentions things like a sub being attacking by 'UUV' (Unmaned Underwater Vehicle?) and the player firing torpedos. From what I can tell, the player was in a sub (most likely the Yangtze) and had to defend it from UUV by firing torpedos at them while moving around (there are also mentions of using a radar to detect things). No idea how or why the player would do that, but it sounds kinda awesome :/ Anymore cool leftovers or cut quests that you know about?