He will first appear at Nipton with an entourage of legionaries but will appear again in the New Vegas Strip and at Caesar’s side in Fort. The first action that can be taken is to kill Vulpes Inculta, the leader of the Legion’s Frumentarii division. Keep in mind that if you’ve already done all of these actions before recruiting Boone, it’ll be impossible to start the quest without using console commands. These points can be gained mainly by attacking Legion forces and leaders, as well as helping prisoners and slaves. In order to start Boone’s companion quest, “I Forgot to Remember to Forget,” you’ll need to accumulate five history points when traveling with Boone.