The level begins at the end of a park. Quickly go around the stone arch right in front of you, go right along the reed almost as far as possible, then turn left and move forward hugging the wall (but go around bushes and trees that you come across). Keep moving and you should stay out of sight from the guards. You'll find a door in the wall that leads to a tennis court. Go along the wall to the right and you'll see a guard walk into view. Wait for him to turn back and either let him go, or sedate or kill him for his uniform. It won't help inside the manor, but makes walking around the park so much easier. Regardless, go down the stairs the guard walks down to the boxes and the manor will be to the left. Be careful not to step into the open here since there is a sniper in the loft in the ho