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 Chairmen, White Gloves, or Omertas with any submachine gun, light machine gun, or minigun.

Behind the scenes
This is a reference to the playful phrase that people think big time crime bosses say, like Al Capone.