Fallout 4 | Here There Be Monsters | Sidequest Walktrough

I SUCCESFULLY MISSED ZAO'S SWORD! Go to The Shamrock Taphouse and talk to Donny Kowalski on the dock at the rear of the building. Alternatively, swim out to the submarine without talking to Donny. Investigate the Yangtze submarine. Talk to Captain Zao. Get the dampening coil from Saugus Ironworks. Talk to Captain Zao. Collect the nuclear warhead from the unfired ICBM in the submarine. Talk to Captain Zao. Replace the dampening coils and insert the warhead in to the reactor. Talk to Captain Zao. Rewards: 200 XP Three Tactical nuclear strike radios 4 Pre-War money (With first successful speech check) 200 Caps (With second successful speech check) Zao's sword (With third successful speech check)