what was the most complicated thing about landing a space shuttle in a forest (using a simulator at NASA) ?

Question: what was the most complicated thing about landing a space shuttle in a forest (using a simulator at NASA) ?
- Keywords:
  shuttle,
  space,
  terrain
Asked by Baby Blue to Hilly on 15 Jun 2015.
- David Hill answered on 15 Jun 2015:
  
  Great question! Really made me laugh too!
  
  The most complicated bit was aiming for the runway… I missed that, and landed in the forest! So you could say, my inability to fly the space shuttle made it really easy to land in the forest…
  
  NASA and I don’t recommend landing in the forest, it probably won’t end too well!
  
  🙂

Question: what was the most complicated thing about landing a space shuttle in a forest (using a simulator at NASA) ?