Alpha Protocol

Alpha Protocol is a 2010 action-RPG and stealth game developed by Obsidian Entertainment and published by Sega.

You are agent Michael Thorton, a new recruit at Alpha Protocol, a clandestine US agency, which is given unlimited resources to conduct covert operations for the government.
You then become a rogue agent and must unravel an international conspiracy to stop a war. Throughout the game, players must make many choices that affect the narrative.

Played from a third-person perspective, you will confront your enemies using firearms, gadgets, martial arts, or you can use infiltration techniques.