Jingwei's Shocksword

Jingwei's Shock Sword is a special variant of the Chinese Officer's Sword available only through the Operation: Anchorage downloadable content. It can be repaired using standard Chinese Officer's Swords or Vampire's Edge. It shocks the enemy doing a damage of 2 per second for 5 seconds. On a critical, it reduces the enemy to a pile of ash. When used in a Sneak Attack critical with a good melee weapons skill this can instant-kill Super Mutant brutes or similarly tough foes.

Location
After completing the simulation in Operation: Anchorage, a sealed armory is unlocked in the Outcast Outpost which contains several DLC-exclusive weapons and armor. Jingwei's Shock Sword is among the cache, along with a Trench Knife, a Gauss Rifle, ammo, and other items.