Catch 22, notes part two

So here we go again with my silly notes on a book!

• Expositional talking mentioned flak I'm suspecting that this conflict is the second world war (after some research I know that this is the second world war)
  
• The story still follows the same characters from before
  
• the book mentiones that Hitler did good in weeding out unamerican things in germany what the actual fuck is happening?
  
• Yossarian is crazy in the head.
  
• Catch 22 is actually a rule that people can't be send of because of concerns over their own wellbeing, but then the people not wanting to be send away are the actuall crazy ones the thrill seekers and such.
  
• There is this native american chief, that has a crazy ass backstory about his family being the human equivalent of oil finding rods.
  
• Did yossarian let someone called Snowden die? During a mission where because the Snowden got shot by a flak gun.