Your mission? To strike deep behind enemy lines, assassinate enemy leaders, disable their infrastructure, and generally harry their abilities to make war on the Republic. Your commanders have recognized that mere gruntwork would be a waste of your talents, and have thus assigned you to lead a team consisting of yourself and three other highly-trained and talented soldiers. Unlike most of the members of the clone army, you've distinguished yourself in training and have molded yourself into a perfect combat machine. In it, you take on the role of RP-1138, an elite member of a commando squadron of the Republic Army.

Star Wars: Republic Commando is a rarity in Star Wars gaming, in that it features no Jedi, no lightsabers, no major characters from the films, and yet still manages to create a compelling adventure despite the lack of most of the elements people normally associate with the Star Wars license, thanks to gameplay that's tightly focused on squad-based combat and tactical combat solving.