Does Strzok have something on Mueller and his crew of political assailants? He was in on the Russia investigation from the beginning.
He probably wants to use info on Hitlery and con-man comey for immunity or some type of deal.
Strzok does seem to be trapped in a corner with very few options. His paper trail is too large and enough has been exposed that he has few options. His last remaining option may be to burn everything to the ground in hopes his own skin will be saved. It seems that the rats are starting to get ready to turn on each other. They seem to be trying to get immunity. That implies guilt on their part. Time to squeeze them harder.