A Slave Obeys

A Slave Obeys is a one-star (★) challenge added with the Fallout: New Vegas add-on Gun Runners' Arsenal.

Challenge requirements
The Courier must kill Mr. House with a 9 iron or Nephi's golf driver.

Effects
Grants 250 XP upon completion.

Behind the scenes
The name of the challenge and its objective are references to BioShock, where Andrew Ryan says "A man chooses, a slave obeys."