When Visitors Attack!

When Visitors Attack! is a side quest in the Fallout: New Vegas add-on, Old World Blues.

Synopsis
Not too long ago, the Think Tank had a few visitors to Big Mountain; one was particularly violent, and attacked Drs. 0 and 8.

Walkthrough

 * 1) Speak to Dr. Klein about the visitor.
 * 2) Speak to 0|Dr. 0 about the attack on him and 8.