All the charges are misdemeanors.  The real punishment will be how the US Attorney team assigned to sue for damages by  private ignition of fire that destroys Federal assets.  There are three of these teams  for the 9th Circuit:  one each in San Francisco, Sacramento and Salt Lake City.  The primary damages are civil.  No lives were lost.  Probably only minor injuries.  I have no idea how the Feds will handle it,  but they brought 46 SWAT teams through Burns to be ready for Bundy antics.  I am sure they will have some sort of civil response to recover damages.  They did,  after all,  sue Sierra Pacific Ind for over $750,000,000 for damages to 56,000 acres by the Moonlight Fire,  which the Feds claim was started by a negligent SPI logging contractor.  In the end, SPI has paid 20,000 acres of land and over $50 million in cash in a negotiated settlement,  upheld by 9th Circuit even after fraud by Feds with evidence was revealed.  You can't beat a confiscatory government.