Hello all, I thought post a dlc idea so say what ever you want about it. But I like it so there.
The DLC will be based in on a off shore town/city build by people who lost at sea from pre-war, using boats drift wood and any other things they could get a hold of. This town/city sends for help and sent a few people on working boats too the shore, some meet bad ends to raiders and others run into other groups like bother hood of steel or railroad and etc. You decided to help cause your such a nice guy/gal, when you get there see the town under siege from mirelurks of all kinds. As your about to kill last of mirelurks they run off as a fog horn goes off as a old cargo ship hits the floating down ripping it apart, sending you into the depths where you wake up back on a ship and a man in a old deep sea diving suits saved you.
He help you too your feet tells you his names and what happened and he been following that ship wanting to scavenge in it, but it picked up speed and rammed the town and heading to your home. He tells you the ship ship form Japan from what he figures and the ship even at this distance is radioactive, it might be carrying nukes or some waste even but if it crashes all that waste will spill into sea making the sea to radioactive to live around. Forcing people to give up fishing, boat travel, swimming, anything with the sea. Which would be bad but would mean mirelurks would also claim new nesting sites causing a boom in there population. So you must work with this guy to stops the ship and find out the story behind it along the way.
Loot would be: harpoon gun, a deep-diving suit, a few magizines, holotapes, new pipboy game, collection of pre-war goodies from Japan.
New water enemies, more underwater exploring, one new follower, and one new pet (a baby mirelurk named Bubbles)