Which .cs file is the movement code in for the starter.fps app?

Hi, i'm trying to find the movement code so i can modify it and all i can find is the key bindings file (default.bind.cs). I'm ideally looking to make and position a static camera then modify the movement code to move an object left, right, up and down relative to the camera, but i can't figure out which file contains the player movement code and the code to set the camera position to the players eye point, could anyone please help me out and point me in the right direction of the file i need to edit? Thanks, Chris.