Get 5 headshots in a row using the same clip.

Kill 6 enemies in a row with a shotgun - all of them as one shot kills.

Complete 'Welcome to Shanghai' on any difficulty.

First kill with a Gas Mine.

First kill with a Gun.

Kill 20 minions.

Release Jennings from his Trap.

Kill 10 minions.

Idle for five minutes.

Used Health Syringe for the first time.

Unlocked first door.

Find your first Patient File.