The dead for the FPS are controllers (simplified things...)
Yea....thats actually the point of playing with controller. Its a matter of, do you want to use an uncofortable, complicated system for controlling the game? I know I dont. Would I rather have 50 buttons for controls, or 10? Some people dont like using the W key on their keyboard to walk around. In fact, using a button at all to control the movement of my character is a horrible concept. I dont want buttons to control movement, I want a joystick for that.
This is a touchy subject because PC [censored] will never admit that playing on a keyboard isnt quite as friendly as picking up a controller. Why, that would be blasphemy. So what the controls dont respond like a mouse does. That has never once effected gameplay negatively for me.
The only benefit for me to get the PC version, is the mods and commands. Other than that, the PC version is worthless. That is why I will use a 360 controller for my PC, and have my PC connected to my tv. Its the best way to play. You get the benefit of the mods and commands, with the ease of a controller.
This is coming from someone who played both versions of the game. I simply will never prefer a keyboard full of buttons over a controller. Ever.