umm, if you mean playing online w/ a pc then getting a controller is optional.....using a keyboard and mouse has greater advantages like being able to customize what function a key has as opposed to pushing tons of button combinations on a controller. and obviously, using a mouse is much faster and accurate that trying to aim with a joystick or direction pad on a controller.....so using a keyboard+mouse is pretty mutch mandatory, unless you wanna get shot up right away. oh and playing online games pretty mutch requires you to have a broadband internet connection2PacThug4Life said:i gotta buy a controller right, cause i'm never played a game online before. (not including solitare and shit like that)