Has anyone try to unlock Eva through the strategy guide?

For some reason when i go to the Silo Entrance after getting Solokov, Campell or Cambell calls me and say something about a report which I didn't get. So i follow what the strategy guide said and interragate the male general. He spits out something about some guy twirling a revolver in an urban zone or something, then the mission ends. The strategy guide said something about getting a report about something in the Town after that mission. But I didn't, now I'm stuck. Any ideas?