Nyah! See?

'''Nyah! See?' is a challenge added in the Fallout: New Vegas add-on Gun Runners' Arsenal''.

Obtaining
To complete it, you must kill 10 Chairmen, White Gloves, or Omertas with any submachine gun, light machine gun, or minigun.

Behind the scenes
The title of this challenge is a reference to American actor Edward G. Robinson, who was largely famous for playing gangster roles. When playing such roles, Robinson would pepper his dialogue with "yeah!" and "see?" for emphasis.