Tom Clancy's Splinter Cell: Blacklist

Unleash the power or the most lethal agent to ever exist. You are Sam Fisher, and you've been given the ultimate freedom to protect innocents against a series of global terror attacks known as Blacklist - the freedom to use limitless force, to break every law, and to become the globe's deadliest operative. If you succeed, the President of the United States will deny you exist. If you fail, millions will die.