Dukov's note

Dukov's note is a ... cut from Fallout 3

Related quests

 * You Gotta Shoot 'Em in the Head

Behind the scenes
This note, along with Dave's note, Mister Crowley's hit list, Strayer's note and Tara's note, are apparently a leftover of earlier versions of the quest You Gotta Shoot 'Em in the Head.