On my first playthrough I entered though Western Gate and for some reason top 3 guards was sleeping, so I was able to enter tent without been noticed.
Then I restarted White March 2 from the start and is now trying to finish this quest again, but no matter what I do, guards are always awake and blocking every possible way inside keep. Does anybody know what is the trigger for guards to go to sleep? Time? Another action? Something else?