Fallout 4 SWORD Location (Shishkebab) + Mini Nukes
Fallout 4 Sword Location in Saugus Iron
Head to the Saugus Ironworks and enter the building. It will be heavily guarded and you will have to deal with a lot of flamers and molotovs.
Make your way to the top where you get a small cutscene. An enemy with a power armor will carry the Shishkebab sword. Use your best weapons to take him out and grab the sword. He also has the roof keys on him which are very handy.
On top you will find 4 mini nukes and some other good loot.