Kill five enemies with a brutal combo

A deadly game of hide and seek

Uncover the secret of Arkham City

Last man standing

Drop in on an old friend

There is only one way in

Save the damsel, but is she in distress?

While on defense, prevent the attackers from completing their first objective

Capture an enemy's Command Post

Attempt to Revive an objective-class teammate over a non-objective teammate near a Primary Objective

Take down an enemy with gunfire while knocked down

Revive yourself