10k sleep

There have been a lot of leaks with the upcoming releases for Warhammer 40K. Lots of speculation that has led to a lot of discussion. One being about what would someone who has been sleeping for 10,000 years of a war do when awoken. How would it affect the battles and those fighting. What would they think when told about some new terror that was unseen and of the horrors that they have been enduring while fighting for their life. Seeing what has happened, what would you feel? I then stopped listening and day dreamed...