Ok, So I thought my action in "CONTROLS" was my shoot button, I dont know cuz im not used to playing PC FPS games, and now ive pressed every button, And I cant shoot my gun, cant swing my knife, and cant throw gernades, everything else works the way i put it, and i couldnt play the game with my graphics card, so i turned all the quality down, and i can play it, but everyone keeps telling me right mouse key or left mouse key, and neither work, i have a laptop and i used my laptop mouse pad, then i also used a wireless mouse figuring it was the laptop, and still didnt work, what do i do or where should I change my shoot settings?