You must survive an entire level in one session without being downed on normal difficulty or above
You need to kill two enemies with simultaneous Quick Draws while in Co-op Mock Surrender
There are some bad ass masks lying around the city. Find one or two to change your look.
Dr. Wu is digging up some intel for you. Make sure he stays alive long enough to find it.
Meilin Jun betrayed the civilian resistance but if it's of no consequence to you, let her live.
You've got a chance to take out Jonah, the leader of the FDI. Don't blow it.