Crosshair 0/1 // If you want the original crosshair, set it to 1, if not, 0
cl_crosshair_file crosshair1 - crosshair7 // This is the unique crosshair, look in the TF2 options > multiplayer for what they look like
cl_crosshair_scale 0+ // The size of the crosshair, it can be anywhere from 0 (to remove it), or infinity, but you don't see it if it goes that high