Maybe the rat supporting FBI, will simply destroy the evidence and say there isnt any left. They will all collude together. There might not be even one single FBI agent, honorable enough to blow the whistle on them.
It will be interesting to see if it results in an armed standoff between federal agents.
It should not be Agent vs Agent. It should be Agent vs US Marines. As a former Paratrooper, I would have been chomping at the bit to get this assignment. Hell, I'd chute up right now given this opportunity.